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DR. RAVSHAN ASHUROV

Researcher

AU Engineering School

CONTACT INFO:

ashurovr[∂]gmail.com

  • Moscow State University, Moscow, Russia (Doctor of Science), 1992
  • 2Moscow State University, Moscow, Russia (PhD), 1981
  • Moscow State University, Moscow, Russia (B/M with Distinction), 1978
  • April 2018 to date: Head of the laboratory of differential equations and their applications, Institute of Mathematics, Academy of Science of Uzbekistan, Tashkent, Uzbekistan.
  • February, 2012 – April, 2018: Leading Scientific Researcher, Head of the Differential Equations department, Institute of Mathematics, Academy of Science of Uzbekistan, Tashkent, Uzbekistan.
  • May, 2018 – August, 2018: Invited professor, Vanderbilt University, TN, USA.
  • February, 2009 – February, 2012: Senior Fellow Researcher, Institute of Advanced Technology (ITMA), University Putra Malaysia UPM).
  • July, 2006 – February, 2009: Leading Scientific Researcher, Institute of Mathematics and Information Technologies (now Institute of Mathematics), Academy of Science of Uzbekistan, Tashkent, Uzbekistan
  • September, 2007 – February, 2009: Professor, Tashkent Branch of Moscow State University, Tashkent, Uzbekistan
  • October, 2004 – July, 2006: Rector of the National University of Uzbekistan, Tashkent, Uzbekistan
  • February, 2003 – October, 2004: Rector of Tashkent Region State Pedagogical Institution, Angren, Uzbekistan
  • May, 2001 – February, 2003: Dean of the Mathematical Department, National University of Uzbekistan, Tashkent, Uzbekistan.
  • September, 2002 – December, 2002, Bowling Green State University, Bowling Green, Ohio, USA, Scientific Researcher under the Grant of IREX.
  • November, 1981 – May, 2001: Assistant, Senior Teacher, Senior Lecturer, Head of the Chair of Mathematical Physics, Professor;  Mathematical Department, Tashkent State University (from 2000 National University of Uzbekistan), Tashkent, Uzbekistan
  • September, 1984 – July, 1985: Scientific Researcher, School of Mathematics, Birmingham University, Birmingham, UK.
  • Partial and Fractional Differential Equations
  • Ordinary Differential Equations
  • Spectral Theory of Differential and Pseudo Differential Operators
  • Harmonic Analysis and Wavelet transforms

I started my teaching activities at Moscow State University (1978-1981), Moscow, Russia, when I was a post graduate student. Since then, I have always combined research and teaching.

I taught general courses like Analysis at all levels, Ordinary Differential Equations, Partial Differential Equations, Modern Methods of Mathematical Physics and a number of specialized courses for graduate students.

From September 2007 till February 2009 I taught at Tashkent Branch of Moscow State University, Uzbekistan.

  • Member of Editorial Board of the Journals: Uzbek Mathematical Journal, Uzbekistan, “Vestnik KRAUNS”, Russia, “Fractional Differential Equations”, Editorial Office Menčetićeva 2,10000 Zagreb,CROATIA,  “e-Journal of Analysis and Applied Mathematics”, DeGruyter, Warsaw,Poland.
  • Member of the Specialized Union on defending PhD and Doctor of Science degree Dissertations on Mathematics in Uzbekistan.
  • Member of Uzbekistan Mathematical Society.
  • Participant of GA meeting of IMU, San Paulo, Brazil, July 29-30, 2018.
  • Chairman of 3 International conferences hold in Tashkent (2005, 2006) and two in Angren (2003, 2004), Uzbekistan and a member of organizing committee of many conferences hold in Uzbekistan, Malaysia and USA (California State University, Fullerton, 2014).
  • Chief Editor of the Journal “Proceedings of the National University  of Uzbekistan” (2004-2006).
  • Referee for many international Mathematical Journals and reviewer for Zentralblatt Math. Germany.
  • Invited speaker for many international conferences: Kyoto University, Japan, 1990; Oberwolfach, Germany, 1991; Cardiff University, UK, 2001; University Putra Malaysia, 2009, 2010, California State University, Fullerton, 2014. Lead speaker for the conference SPACE2009, Malaysia.
  • School of Mathematics, Birmingham University, Birmingham, UK, September, 1984 – July, 1985: Scientific Researcher, Lectures at the seminars of Oxford University, Kings College of London University, University of Edinburgh, Cardiff University and Birmingham University.
  • School of Mathematics, Birmingham University, Birmingham, UK, Visiting scientist, 1990, 2000, 2001.
  • Kyoto University, Kyoto, Japan, 1990. Lecture at the conference “Harmonic analysis on homogeneous spaces”.
  • Oberwolfach, Germany,  1991. Lecture at the conference “Spectral theory of differential operators”.
  • The Abdus Salam International Center for Theoretical Physics (ICTP), Trieste, Italy, 1999, 2001, 2004, 2006. Visiting scientist.
  • Siena University, Siena, Italy, November 3-5, 1999. Lecture at the Seminar “Mathematical analysis”, supervisor Professor R. Chiappanelli.
  • University Putra Malaysia, Institute for mathematical research, Visiting scientist, 2003, Serdang, Malaysia.
  • Bowling Green State University, Bowling Green, Ohio, USA, September, 2002 – December, 2002, Grant of IREX.
  • New Mexico University, New Mexico, USA, January 2007. Lecture at the Seminar “Mathematical analysis”, supervisor Professor C.Pereyra
  • Vanderbilt University, Nashville, Tennessee, USA, 2008, March 5-9. Lecture at the 24th Southeastern Analysis Meeting.
  • School of Mathematics, Birmingham University, Birmingham, UK, Meeting to honor the retirement of Professor W.N. Everitt, by the invitation of Professor J.R. Blake, the Head of School of Mathematics. September 3-11, 2009.
  • Mercer University in Macon, USA, October 16-17, 2009. Lecture at the Twenty-ninth annual Southeastern Atlantic Conference on Differential Equations.
  • Richmond University, Richmond, Virginia, USA, November 5-6, 2010. Lecture at the Meeting of the American Mathematical Society.
  • Vanderbilt University, Nashville, Tennessee, USA,May 17-20, 2011. Lecture at International Symposium in Approximation Theory.
  • California State University, Fullerton, CA, USA, June 12-13, 2013. Analysis Workshop, Invited Speaker.
  • California State University, Fullerton, CA, USA, May 2014. The USA-Uzbekistan Conference on Analysis and Mathematical Physics, Fullerton, Invited lecture at the Conference.
  • Vanderbilt University, Nashville, Tennessee, USA, January 13. 2017. Lecture at the seminar of prof Marcelo Disconzi.
  • San Paulo, Brazil, July 29-30, 2018, Participant of GA meeting of IMU.
  • Invited professor, Vanderbilt University, TN, USA. May 2018 – August 2018,January 13 April 7, 2019.
  • Sichuan University, Chengdu, China, September 15-20, 2019, Invited speaker at

the First China-Central Asia Joint Meeting in Mathematics.

  • University of New Haven, Connecticut, USA, October-December 2019, Scientific research with Professor S. Umarov.
  • Winner of grants SOROS (USA) twice and IREX (USA) once.

Project Leader for the following Grants:

  • Functional Analysis and Applications, Grant PRJ-24,ICTP, Trieste, Italy 2001-2010, total budget: 50 000 euro.
  • Nonclassical Differential Equations and Spectral Theory, Grant of the Academy of Science of Uzbekistan, 2007-2020,  total budget: 600 000 000 sum (1 USD = 2010 sum).
  • On Summability of Egenfunction Expansions of Piecewise Functions, Grant of RUGS, 05-01-09-0679RU/F1, University Putra Malaysia, August 26, 2009- August 25, 2010, budget: 30 000 USD.
  • Development of Spectral Theory of Elliptic Differential Operators, Grant of FRGS, 01-11-09-713FR/F1,  Malaysia Ministry of Higher Education, November 2009- November 2011, budget: 24 000 USD.
  • On Summability of Egenfunction Expansions of Differential and Pseudo-Differential Operators, Grant of RUGS, 05-03-11-1450RU/F1, University Putra Malaysia, August 22, 2011- August 21, 2013, budget: 52 000 USD.
  • Forward and Inverse problems for partial differential equations, The Ministry of Innovative Development of the Republic of Uzbekistan, Grant No F-FA-2021-424, 2021-2025, 250000 USD.

The following PhD students defended successfully their dissertations under my supervision:

  1. A. Metvali  (defended in November, 1991),
  2. T.Buvaev  (defended in June, 2002),
  3. E. Faiziev (defended in December 2002),
  4. S.Sokolov  (defended in April, 2005).
  5. AzadehGhiyamat(defended in April, 2011).
  6. LadanEbadi (defended in April 2012).
  7. Kadirkulov (Doctor of science, 2017)
  8. Z.Dzamalov (Doctor of science, 2019)

– M/B projects more than 100, all completed

I have been an external and an internal examiner for many PhD and master’s degree Theses.

Books:

  1. R.  Ashurov,  A.  Varisov,  A.  Abdullaev,  N.  Melnikov,  A.  Isameddinov,  B.  Haidarov, Solutions of test questions in Mathematics for students to Tashkent State University for 1985/1986   academic year, Textbook, (Uzbek), TashkentStateUniversity, Tashkent, 1987.
  2. R.  Ashurov,  A.  Varisov,  A.  Abdullaev,  N.  Melnikov,  A.  Isameddinov,  B.  Haidarov, Solutions of test questions in Mathematics for students to Tashkent State University for 1985/1986   academic year, Textbook,  (Russian), Tashkent State University, Tashkent, 1987.
  3. A.  Alimov,  R.  R.  Ashurov,  Modern methods of mathematical physics, Textbook, (Uzbek) National University of Uzbekistan, Tashkent,  2005 , p. 1 – 105.
  4. A. Alimov,  R.  R.  Ashurov,   Mathematical Analysis,  part I, Textbook, (Uzbek) Ministry of Higher Education of Uzbekistan, Tashkent, Kamalak-press, 2012. 616 p.
  5. A. Alimov,  R.  R.  Ashurov,   Mathematical Analysis,  part II, Textbook, (Uzbek) Ministry of Higher Education of Uzbekistan, Tashkent, Turon Matbaa,2017.  816 p.
  6. A. Alimov,  R.  R.  Ashurov,   Mathematical Analysis,  part I-III, Textbook, (Uzbek) Ministry of Higher Education of Uzbekistan, Tashkent, National University of Uzbekistan, 2019. (part I – 630 p., part II – 550 p., part III – 401 p.).

Monograph:

  1. A.  Alimov,  R.  R. Ashurov,  A.  K.  Pulatov,  Multiple series and Fourier integrals, Results of science and technology. Series Modern Problems of Mathematics. Fundamental directions (in Russian), 42 (1989),  7–104.
  2. A.  Alimov,  R.  R. Ashurov,  A.  K.  Pulatov,  Multiple series and Fourier integrals, Commutative Harmonic Analysis IV pp 1-95.
  3. Ashyralyev, S. Piskarev, V. Covachev, R. Ashurov, H. A. Yurtsever, A. S. Erdogan, Well-posed and ill-posed boundary value problems for PDE 2013, Hindawi, Abstract and Applied Analysis, 2013 (2013).
  4. Russo, A.G. Aksoy, R. Ashurov, Sh. Ayupov, Topics in Functional Analysis and Algebra, American Mathematical Soc. 672 (2016), pp. 258.
  1. R. Ashurov, Asymptotical behavior of  the spectral function  of some elliptic differential operators, (Russian) Applicable mathematics and IBM,  Moscow State University, Moscow, 1980.
  2. R.  Ashurov,  On convergence almost everywhere of spectral resolutions associated with some elliptic operators, (Russian) Applicable mathematics and IBM, Moscow State University, Moscow, 1981.
  3. R.  Ashurov, On conditions for being  a basis in   of the Riesz means of spectral expansions, (Russian) Mat. Zametki, 29 (1981), no. 5, 673-684.
  4. R. Ashurov,  On the divergence of spectral decompositions connected with elliptic operators,  (Russian) Mat. Zametki, 30 (1981), no. 2, 225-235.
  5. R.  Ashurov,  On the absence of localization of spectral decompositions connected with elliptic operators, (Russian) Mat. Zametki, 30 (1981), no. 4, 535-542.
  6. R.  Ashurov,  A.  K.  Pulatov,  Asymptotic behavior of the spectral function of an elliptic operator with constant coefficients, (Russian) Dokl. Akad. Nauk. SSSR,  256(1981), no. 3, 528-530.
  7. R.  Ashurov,  Conditions for localization of spectral decompositions corresponding to ellipric operators with constant coefficients, (Russian) Dokl. Akad. Nauk. SSSR, 257 (1981), no. 6, 1292-1294.
  8. R.  Ashurov,  Convergence and summability conditions of spectral decompositions connected with elliptic operators, (Russian) PhD dissertation,  Moscow State University, Moscow, 1981.
  9. R.  Ashurov,  The asymptotic behavior of spectral function of some elliptic operators, (Russian) Differencialnie Uravneniya, 18, (1982), no. 4, 621-625.
  10. R.  Ashurov,  Conditions for localization of spectral decompositions corresponding to elliptic operators with constant coefficients, (Russian) Mat. Zametki, 33, (1983), no. 6, 847-856.
  11. R.  Ashurov,  Summability almost everywhere of Fourier series from  in eigenfunctions, (Russian) Mat. Zametki, 34, (1983), no. 6, 837-843.
  12. R.  Ashurov,  Localizationof spectral expansions corresponding to elliptic operators with constant coefficients,  (Russian) Differensialnie Uravneniya, 20, (1984), no. 1, 3-7.
  13. R.  Ashurov,  A.  I.  Bastis,  Spectral function of an elliptic differential operator with constant principal part, (Russian) Dokl. Akad. Nauk. SSSR,  274, (1984), no. 6, 1289-1291.
  14. R.  Ashurov,  Asymptotic estimation of the spectral function of an elliptic operator, (Russian)  Dokl. Akad. Nauk. SSSR, 276, (1984) no.2, 265-267.
  15. R.  Ashurov,  Conditions for the localization of multiple trigonometric Fourier series, (Russian),  Dokl. Akad. Nauk. SSSR, 282, (1985), no. 4, 777-780.
  16. R.  Ashurov,  Spectral expansions corresponding to elliptic operators with a constant principal part, (Russian) Differential equations and their applications to mechanics, 211-230, “Fan”, Tashkent, 1985.
  17. R.  Ashurov,  Asymptotic estimation of the spectral function of an elliptic operator, (Russian) Boundary value problems for nonclassical equations of mathematical physics, 248-266, “Fan”, Tashkent, 1986.
  18. R.  Ashurov,  A.  K.  Pulatov,  A.  R.  Khalmuhamedov,  Zeros of eigenfunctions of a singular elliptic operator, (Russian) Dokl. Akad. Nauk. UzSSR, (1986), no. 9, 7-8.
  19. R.  Ashurov,  An asymptotic estimate in  for Riesz means of the spectral function of an elliptic operator, (Russian) Dokl. Akad. Nauk. UzSSR, (1986), no. 11, 6-8.
  20. R.  Ashurov,  Asymptotic behavior of a spectral function of the Schrodinger operator with potential  , (Russian) Differentialnie Uravneniya, 23, (1987), no. 1, 169-173.
  21. R.  Ashurov,  An asymptotic estimate in  for the Riesz means of the spectral function of an elliptic operator, (Russian) Differentialnie Uravneniya, 25, (1989), no. 1, 1-9, (English) Differential equations, 25, (1989), no. 1, 1-9.
  22. R.  Ashurov, Uniform summability of a spectral expansions of the Schrodinger operator with singular potential, (Russian) Dokl. Akad. Nauk. UzSSR, (1989), no. 7, 4-6.
  23. A.  Alimov,  R.  R. Ashurov,  A.  K.  Pulatov,  Multiple series and Fourier integrals, (English),  Current problems in mathematics. Fundamental directions, Vol. 42, (1989), 7-104, (Russian) Itogi Nauki I Tekhniki, Akad. Nauk SSSR, Vsesoyuz.  Inst. Nauchn. I Tekhn. Inform., Moscow, 1989.
  24. R.  Ashurov,  A.  A.  Metvali, Conditions for the localization of triangular partial sums of a double trigonometric Fourier series, (Russian) Izv. Akad. Nauk UzSSR, Ser. Fiz. Mat. Nauk, (1989), no. 6, 7-13.
  25. R.  Ashurov,  Conditions for the localization of quadratic partial sums of a multiple trigonometric Fourier series in classes of S. M. Nikolskie, (Russian) Mat. Zametki, 46, (1989), no. 4, 3-7, (English) Math. Notes 46, (1989), no. 3-4, 755-757 (1990).
  26. R.  Ashurov,  On the localization principle for the multiple Fourier trigonometrical series,  (Russian) Proceedings of the Tashkent State University, (1989), 14-21, Tashkent, UzSSR.
  27. R.  Ashurov,  A.  A. Metvali,  On localization of the multiple Fourier integrals in the  S. M. Nikolskie class, (Russian) Proceedings of the Tashkent State University, (1989), 22-30, Tashkent, UzSSR.
  28. R.  Ashurov,  Expandability of continuous functions from Nicolskie classes into multiple Fourier integrals, (Russian) Mat. Zametki, 47, (1990), no. 2, 3-7, (English) Math. Notes, 47, (1990), no. 1-2, 107-110.
  29. R.  Ashurov,  Zeros of eigenfunction of the Schrodinger operator with a singular potential, (Russian) Differentialnie Uravneniya, 26, (1990), no. 11,  2000-2002.
  30. R.  Ashurov,  On an asymptotic estimate in   for the spectral function of nonselfadjoint operators, (Russian) Dokl. Akad. Nauk UzSSR, (1990), no. 10, 10-12.
  31. R.  Ashurov,  The multiple Fourier series, Harmonic Analysis on homogeneous spases and Representation theory of groups,  Kyoto University, Kyoto, Japan, (1991), 52-76.
  32. R.  Ashurov,  Bi-orthogonal expansions of a nonselfadjoin Schrodinger operator, (Russian), Differentsialnie Uravneniya, 27, (1991), no. 1, 156-158.
  33. R.  Ashurov,  Summability of multiple trigonometric Fourier series, (Russian) Mat. Zametki, 49, (1991), no. 6, 12-18, (English) Math. Notes, 49, (1991), no. 5-6, 563-568.
  34. R.  Ashurov,  Convergence in the mean of spectral expansions of nonselfadjoint elliptic operators, (Russian) Uzbek. Mat. Zh. (1991), no. 2,  6-12.
  35. R.  Ashurov,  A.  A.  Metvali,  On the uniform convergence of triangular partial sums of a double trigonometric Fourier series, (Russian), Uzbek. Mat. Zh., (1992), no. 1, 18-22.
  36. R.  Ashurov,  Conditions for the localization and summability of  spectral resolutions of elliptic operators,Doctoral dissertation, Moscow State University, Moscow, Russia, 1992.
  37. R.  Ashurov,   K.  T.  Buvaev, On the divergence almost everywhere of spectral expansions of functions from  , (Russian) Uzbek. Mat. Zh. no. 3, (1997), 3-8.
  38. R.  Ashurov,  A Tauberian theorem with a remainder and an estimate for a spectral function, (Russian) Uzbek. Mat. Zh. no. 3, (1998), 3-11.
  39. R.  Ashurov,  Yu.  E.  Faiziev,  On spectral decompositions of the Schrodinger operator with a singular potential and an arbitrary spectrum,  (Russian) Uzbek. Mat. Zh., no. 1, (1998), 24-35.
  40. R.  Ashurov,  K.  T.  Buvaev,  On the convergence almost everywhere of spectral expansions of functions in   (Russian) Uzbek. Mat. Zh., no. 4, (1998), 14-23.
  41. R.  Ashurov,  On spectral expansions associated with elliptic pseudo differential operators, (Russian)  Uzbek. Mat. Zh., no. 6, (1998), 20-29.
  42. R.  Ashurov,  W.  N.  Everitt,  Linear queasy-differential operators in  locally integrable spaces on the real line, School of Mathematics and Statistics, Birmingham University, Birmingham, UK, preprint,  1999, 1-33.
  43. R.  Ashurov,  W.  N.  Everitt,  Operators generated by a countable number of queasy-differential expressions,  ICTP, Trieste, Italy, preprint, 1999, 1-11.
  44. R.  Ashurov,  W.  N.  Everitt,  Linear queasy-differential operators in locally integrable spaces on the real line, Proc. Roy. Soc. Edinburgh Sect. A 130, (2000), no. 4, 671-698.
  45. R.  Ashurov,  Yu.  E.  Faiziev,  On an estimate for a “patch” of eigenfunctions of a Schodinger operator with singular potential,  (Russian) Uzbek. Mat. Zh., no. 2, (2001), 12-19.
  46. R.  Ashurov,  W.  N.  Everitt,  Linear operators generated by a countable number of quasi-differential expressions, Appl. Anal. 81, (2002), no. 6, 1405-1425.
  47. R.  Ashurov,  M.  S.  Sokolov, On spectral resolutions differential vector-operators, ICTP,  Trieste, Italy,  preprint,  2004.
  48. R.  Ashurov,  M.  S.  Sokolov,  On spectral resolutions connected with self-adjoint differential vector-operators in a Hilbert space, Appl. Anal. 84, (2005), no. 6, 601-616.
  49. R.  Ashurov,  Yu.  E. Faiziev,  On spectral resolutions of the Schrodinger operator with a singular potential, (Russian) Differensialnie Uravneniya,  41, (2005), no. 2, 241-249, (English) Differ. Equ. 41, (2005), no. 2, 254-263.
  50. R. Ashurov, On summability of eigenfunction expansions of piecewise smooth functions, ICTP, Trieste, Italy, preprint, IC/2006/120, 1-17.
  51. R.  Ashurov,  On summability of spectral resolutions of piecewise smooth functions, Dokl. Akad. Nauk Uzbekistana,  (2007), no 4, 7-9.
  52. R.  Ashurov,  On multiple the Fourier series of piecewise smooth functions, (Russian) Dokl. Akad. Nauk, Russia, 414, (2007), no 1,  1-3,  (English) Doklady Mathematical Sciences,  75, (2007), no 3/1.
  53. R. Ashurov,  On summability of spectral resolutions of piecewise smooth functions, Differensialnie  Uravneniya,  44, (2008), no. 1, 1-6, (English) Differ. Equ.  44, (2008), no.1.
  54. R.  Ashurov,  On summability of eigenfunction expansions of piecewise smooth functions,  Appl. Anal., 87, (2008) , no.1, 29-44.
  55. R. Ashurov and Sanjar Karaev, On eigenfunction expansions of piecewise smooth functions,associated with the power of the Schr\”{o}dinger operator, Appl. Anal. 88, (2009), no6, 937 – 945.
  56. R. Ashurov and Anvarjon Ahmedov, On uniform convergence of multiple Fourier integrals corresponding to pseudodifferential operators, Journal of Pseudo Differential Operators and Applications  (2010) 1:417–432.
  57. R. Ashurov and A. Butaev,  The Kahane theorem for nonspherical partial sums of the Fourier integrals,Comptes Rendus Mathematique, Academy of France.  I 348 (2010) 1103-1106.
  58. R. Ashurov , Anvarjon Ahmedov and Ahmad Rodzi b. Mahmud The generalized localization for multiple Fourier integrals, Journal of Mathematical Analysis and Applications,  371 (2010), 832-841.
  59. R. Ashurov and Almaz Butaev, On the Pinsky phenomenon, Journal of Fourier Analysis and Applications, 16 (2010), 804-812.
  60. Kilicman, H. Eltayeb, and R. R. Ashurov, Futher analysis on classifications of PDE(s) with variable coefficients, Applied Mathematical Letters, 23 (2010), 966-970.
  61. R.  Ashurov and Anvarjon Ahmedov, On the divergence of the expansions of continuous functions from Nikol’skii classes, Malaysian Journal of the Mathematical sciences, 5(2): 185-196 (2011)
  62. R. Ashurov and Almaz Butaev, On continuous wavelet transforms of distributions, Appl. Math. Letters, 24(2011), 1578-1583.
  63. R. Ashurov,  On the multiple Fourier integrals of continuous functions from the Sobolev spaces, Journal of Acta Scientiarum Mathematicarum, (IF 0.317). 77(2011), 209-222.
  64. R. Ashurov and Almaz Butaev ,The Diffusion equation with piecewise smooth initial condition, Malaysian Journal of the Mathematical sciences,5(1): 101-110 (2011).
  65. R. Ashurov and Almaz Butaev, On spherically symmetric continuous wavelet transforms of functions from Liouville classes, International Journal of Mathematics and Computation, 11(2011), no. J11, 111 – 117.
  66. Almaz Butaev and R. R. Ashurov, On some class of nonseparable continuous wavelet transforms,  Anal.V.91, 2257-2265, 2012.
  67. R. Ashurov, Convergence of the continuous wavelet transforms on the Lebesgue set of Lp functions, International Journal of Wavelets, Multiresolution and Information Processing (IJWMIP),  9(2011), no. 4, 676-683.
  68. R. Ashurov, On nonspherical partial sums of Fourier integrals of continuous functions from the Sobolev spaces, Pertanika Journal of Science and Technology, (Scopus) 19(S) (2011), 11-15.
  69. R. Ashurov, A. Butaev, B. Pradhan, On Generalized Localization of Fourier Inversion Associated with an Elliptic Operator for Distributions, Hindawi Publishing Corporation, Abstract and Applied Analysis, Volume 2012, Article ID 649848, 13 pages, doi:10.1155/2012/649848.
  70. R. Ashurov, On the almost-everywhere convergence of the continuous wavelet transforms, Proceedings of the Royal Society of Edinburgh, 142A, 1121–1129, 2012.
  71. Z.M. Shafri, E. Taherzadeh, S. Mansor, R. Ashurov, Hyperspectral remote sensing of urban areas: an overview of techniques and applications, Research Journal of Applied Sciences, Engineering and Technology, v. 4, 11, 2012, pp. 1557-1565.
  72. Taherzadeh, H.Z.M. Shafri, Sh.Mansor, R. Ashurov, A comparison of hyperspectral data and Worldview-2 images do detect impervious surface, Hiperspectral Image and Signal Processing, 2012, 4, pp 1-4.
  73. Ladan Ebadi , Helmi Z. M. Shafri , Shattri B. Mansor , Ravshan Ashurov, A review of applying second-generation wavelets for noise removal from remote sensing data, Earth Sci. 2013. 70 (6), 2679-2690.
  74. Batirkhan Turmetov and Ravshan Ashurov, On solvability of the Neumann boundary value problem for non-homogeneous polyharmonic equation in a ball, Journal of Boundary Value Problems, 2013:162, 1-15.
  75. Batirkhan Turmetov and Ravshan Ashurov, On solvability of the Neumann boundary value problem for non-homogeneous biharmonic equation, British Journal of Mathematics and Computer Science, 4(4): 557-571, 2014.
  76. Almaz Butaev and R. R. Ashurov, On the almost-everywhere convergence of the spherically symmetric continuous wavelet transforms, Uzbek Mathematical Journal, 4 (2014), 9-28.
  77. Azadeh Ghiyamat, Helmi Z.M. Shafri, Ghafour Amuzad Mahdiraji, R. Ashurov, Abdul Rashid M.Shariff, Shatri Mansor, Impact of Discrete Wavelet Transform and Discriminating Airborne Hyperspectral Tropical Rainforest Tree Species, Journal of Applied Remote Sensing, Vol. 8, 2014, pp. 71-96.
  78. Azadeh Ghiyamat, Helmi Z. M. Shafri, Shattri B. Mansor, Ravshan Ashurov, Airborne Hyperspectral Discrimination of Tree Species with Different Ages Using Discrete Wavelet TransformInternational Journal of Remote Sensing. 2015. V. 36, N. 1, 2015, 318-342.
  79. Ravshan Ashurov, Alberto Cabada and Batirkhan Turmetov, Operator method for construction of solutions of linear fractional differential equations with constant coefficients, Journal of Fractional Calculus and Applied Analysis. 1(2016), pp 229-252.
  80. Ravshan Ashurov and Almaz Butaev,  On Generalized Localization of Fourie Inversion for Distributions, Contemporary Mathematics, USA, v. 672, 2016, 33-50.
  81. R. Ashurov and Yu. E. Fayziev, On construction of a solution of linear differential equation with fractional differentiation and constant coeffients, Uzbek Mathematical Journal, 2017, 3, pp 3-21.
  82. R. Ashurov, K.T. Buvaev, Almost everywhere summability of multiple Fourier integrals, Differential Equations, 2017, V. 53, N. 6, pp 745-755.
  83. R. Ashurov, A. Butaev, On pointwise convergence of continuous wavelet transforms, Uzbek Mathematical Journal, 2018, No. 1, pp 4-26.
  84. Z. Dzhamalov, R.R. Ashurov, On a nonlocal boundary-value problem for second kind second-order mixed type loaded equation in a rectangle, Uzbek Mathematical Journal, 2018, No. 3, pp 63-73.
  85. Z. Dzhamalov, R.R. Ashurov, On the smoothness of the solution of a nonlocal boundary value problem for the multidimensional Chaplygin’s equation, Mathematical Journal (Russian) 18,  № 2(68), 2018, 59-71.
  86. Z. Dzhamalov, R.R. Ashurov, On a nonlocal boundary-value problem for Chapligin’s loadedequation in a rectangle, Uzbek Mathematical Journal, 2018, No. 4, pp 49-58.
  87. R. Ashurov, S.Z. Dzhamalov, On a inverse problem for multidimensional mixed type equation of second type and second order with nonlocal boundary conditions, Bulletin of the Institute of Mathematics, 2018, No. 3, pp. 5-11.
  88. R. Ashurov, Yu. Fayziev, The principle of generalized localization for continuous wavelet expansions, Mathematical notes, 106, issue 6, 2019.
  89. Z. Dzhamalov, R.R. Ashurov, On a linear invers problem for multidimensional mixed type equation of second type and second order, Izvestiya Vuzov, 2019, No. 6, pp 11-22.
  90. Z. Dzhamalov, R.R. Ashurov, On a linear invers problem for multidimensional mixed type equation of second type and second order, Differential equations, v. 55,   № 1, 2019, 34-44
  91. R. Ashurov,Generalized localization for spherical partial sums of multiple Fourier series, Doklady RAN, 289, № 1, 2019.
  92. R. Ashurov, Generalized localization for spherical partial sums of multiple Fourier series,  Journal of Fourier Analysis and Applications, V. 25, 3174-3183, 2019.
  93. R.Ashurov,  R. Zunnunov. Initial-boundary value and inverse problems for subdiffusion  equations in $\mathbb{R}^N$. // Fractional differential calculus.2020, V. 10, N 2, pp. 291-306.
  94. R. Ashurov, S.R. Umarov, Determination of the order of farctional derivative for subdiffusion equations. // Fractional Calculus and Applied Analysis, 2020,  V. 23, № 6, pp. 1647-1662.
  95. R. Ashurov, A.T. Muhiddinova, The inverse problem of determining the density of heat sources for the subdiffusion equation. // Differential Equations,  2020, т. 56, № 12, 1596-1609.
  96. Alimov,  R. Ashurov, Inverse problem of determining an order of the Caputo time- fractional derivative for a subdiffusion equation.// J. Inverse Ill-Posed Probl. V. 28, Issue 5, pp. 651-658, 2020;
  97. R. Ashurov, A.T. Muhiddinova, Initial-boundary value problems for hyperbolic equations with an elliptic operator of arbitrary order.// Vestnik KRAUNC. Physical and mathematical sciences. 30(1) (2020). С. 8–19.
  98. Dzhamalov, R.Ashurov. M. Sultanov, U. Ruziev. On the unique solvability of a semi-nonlocal boundary value problem for the loaded Chaplygin equation in a rectangle.// Vestnik KRAUNC, 2020,Т.31, №2,с.8-17.  
  99. Dzhamalov, S.Umarov, R.Ashurov. On unique solvability of a nonlocal boundary value problem for a loaded multidimensional    Chaplygins equation in the Sobolev space.// «Lobachevski Journal of Mathematics, 2020, Vol.41, No1, pp7-14»..
  100. R.Ashurov, Y.Fayziev. Determination of fractional order and source term in a fractional subdiffusion equation,  // «Lobachevski Journal of Mathematics, 2021, Vol.42, No3, pp. 508-516.». 
  101. R. Ashurov, Convergence almost everywhere of multiple trigonometric Fourier series of functions from Sobolev classes. // Math notes, V. 109, N 2, 2021, pp. 163-169.
  102. R.Ashurov, O.T.Muhiddinova. Initial-boundary value problem for a time-fractional subdiffusion equation with an arbitrary elliptic differential operator,  // «Lobachevski Journal of Mathematics, 2021, Vol. 42, No. 3, pp. 517–525.
  103. Dzhamalov,  R.Ashurov, U. Ruziev. On a Seminonlocal Boundary Value Problem for a Multidimensional Loaded Mixed Type Equation of the Second Kind// «Lobachevski Journal of  Mathematics, 2021, Vol. 42, No. 3, pp. 536–543..
  104. R. Umarov, R.R. Ashurov, YangQuan Chen. On a method of solution of systems of fractional pseudo-differential equations. // Fractional Calculus and Applied Analysis, 2021, V. 24, № 1, pp. 254-277.
  105. R.Ashurov, Y.Fayziev. On some boundary value problems for equations with boundary operators of fractional order, International Journal of Applied Mathematics, V.34, no. 2, 2021, 283-295
  106. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On a semi-nonlocal boundary value problem for the three-dimensional Tricomi equation in an unbounded prismatic domain // Vestnik KRAUNC, Phys.-Mat. science. 2021, Т.35 №2, с.8-16.
  107. R. Ashurov, Yu.E. Fayziev, Inverse problem for determining the order of a fractional derivative in a wave equation, Mathematical Notes, V. 110, N 6, 2021, pp. 824-836.
  108. R. Ashurov, R. Zunnunov, Inverse Problem for Determining the Order of the Fractional Derivative in Mixed-Type Equations, Lobachevskii Journal of Mathematics, 2021, Vol. 42, No. 12, pp. 2714–2729.
  109. R. Ashurov, O.T. Muhiddinova, Initial-boundary value problem for a time-fractional subdiffusion equation on the torus, Uzbek Mathematical Journal, 2021, Volume 65, Issue 3, pp.17-24.
  110. Alimov and R. Ashurov, On the backward problems in time for time-fractional subdiffusion equations, Fractional Differential Calculus, V.11, N 2, (2021), 203-217.
  111. R.Ashurov, Y.Fayziev, On the Nonlocal Problems in Time for Time-Fractional Subdiffusion Equations, Fractal and Fractional, 2022. V.6, No 41. https://doi.org/10.3390/ fractalfract6010041.
  112. R. Ashurov, Generalized localization and summability almost everywhere of multiple Fourier series and integrals, Modern Mathematics. Fundamental directions. V 67, № 4 (2021). С. 634–653.
  113. R. Ashurov, S.R. Umarov, An inverse problem of determining orders of systems of fractional pseudo-differential equations. // Fractional Calculus and Applied Analysis,  https://doi.org/10.1007/s13540-021-00006-y.
  114. Z. Dzhamalov1, R. R. Ashurov1, and Kh. Sh. Turakulov, The linear inverse problem for the three-dimensional the Tricomi equation in a prismatic unbounded domain, , Lobachevskii Journal of Mathematics, 2021, Vol. 42, No. 15, pp. 3606–3615.
  115. R. Ashurov and M. D. Shakarova, Time-dependent source identification problem for fractional Schrodinger type equations, Lobachevskii Journal of Mathematics, 2022, Vol. 43, No. 5, pp. 1053–1064.
  116. R. Ashurov, Yu.E. Fayziev, Determination of fractional order and source term in subdiffusion equations, European Mathematical Journal, Volume 13, Number 1 (2022), 19 – 31.
  117. Alimov and R. Ashurov, Inverse problem of determining an order of the Riemann-Liouville time-fractional derivative, Progr. Fract. Differ. Appl. 8, No. 4, 1-8 (2022).
  118. R. Ashurov, Yu.E. Fayziev, On the nonlocal problems in time for subdiffusion equations with the Riemann-Liouville derivatives, Bulletin of the Karaganda University. Mathematics series, № 2(106), 2022, DOI 10.31489/2022M2/18-37,         (Web of Sciences)

Refereed Proceedings/ International conferences

  1. R.  Ashurov,  W.  N.  Everitt,  Differential operators in locally integrable spaces, Second Gregynog Symposium of differential equations,  Abstracts of talks,  June, 1985,  Cardiff, UK.
  2. R.  Ashurov,  Investigation of  spectral resolutions of the Schrodinger operator with a singular potential by the V. A.  Il’in method, (Russian)  Abstracts of talks of the International conference “Functional methods in applicable mathematics and mathematical physics”, 1988, Tashkent, Uzbekistan.
  3. R.  Ashurov,  Conditions for the localization of spectral decompositions corresponding to elliptic operators with constant coefficients, (Russian) Abstracts of talks of Soviet- Italian symposium, Samarkand, (1990), 52, Uzbekistan.
  4. R.  Ashurov,  Convergence almost everywhere of spectral resolutions, Abstracts of talks,  Conference on differential operators, Dundee, (1990), UK.
  5. R.  Ashurov,  An asymptotic estimate in  of the spectral function of elliptic operators, Abstracts of talks, Conference on differential equations, Plovdiv, Bulgaria, 1991.
  6. R.  Ashurov,  The multiple Fourier series, Harmonic Analysis on homogeneous spaces and Representation theory of groups,  Kyoto University, Kyoto, Japan, (1991), 52-76.
  7. R.  Ashurov,  On spectral resolutions of the Schrodinger operator, Abstracts of talks, Conference on differential operators,  Oberwolfah,  Germany,  1991.
  8. R.  Ashurov, On spectral resolutions of nonselfadjoint differential operators, (Russian) Abstracts of talks, International conference on differential operators, Alma-Ata,  Kazakhistan, 1991.
  9. R.  Ashurov,  On convergence of spectral resolutions of elliptic differential operators, Abstracts of talks, Conference on differential operators, Dundee,  UK, 1992.
  10. R.  Ashurov,  Sharp summability conditions for spectral resolutions of pseudo differential operators, Abstracts of talks, Conference on differential operators, Voronej, Russia,  1992.
  11. R.  Ashurov,  M.  Sh.  Isanova, On summability of spectral decompositions of elliptic operators,  (Russian) Abstracts of talks,  Conference on mathematical analysis and applications, Tashkent, Uzbekistan, 1993.
  12. R.  Ashurov,  S.  S.  Sadikov,  On uniform convergence of spectral decompositions of multiparametr operator, (Russian) Abstracts of talks,  Conference on mathematical analysis and applications, Tashkent, Uzbekistan, 1993.
  13. R.  Ashurov,  On the summability of spectral resolutions, Abstracts of talks, Conference on spectral theory of differential operators, Cardiff, UK, 2001.
  14. R.  Ashurov,  M.  S.  Sokolov,  Introduction to the spectral theory of differential vector-operators,  Abstracts of talks,  Conference on “m-function” and related topics, Cardiff, UK, 2004.
  15. R.  Ashurov,  M.  S.  Sokolov,  The spectral theory of differential vector-operators, (English) Proceedings of the Conference on Differential equations, Angren, Uzbekistan,  2004.
  16. R.  Ashurov,  Yu.  E.  Faiziev,  On eigenfunctions of the Schrodinger operator with singular potential,  (Russian) Proceedings of the conference on Mathematical physics,  Tashkent,  Uzbekistan, 2005.
  17. R.  Ashurov,  K.  T.  Buvaev,  On almost everywhere convergence of spectral decompositions corresponding to elliptic operators. (Russian)Proceedings of the conference on Mathematical physics,  Tashkent,  Uzbekistan, 2005.
  18. R. Ashurov,  On summability of eigenfunction expansions of piecewise smooth functions. (English) The 24th Southeastern Analysis Meeting, Vanderbilt University, USA, March 5-9, 2008.
  19. R. Ashurov, On convergence almost-everywhere of spherical partial sums.(English) Twenty-ninth annual Southeastern Atlantic Conference on Differential Equations, Mercer University in Macon, USA, October 16-17, 2009.
  20. R. Ashurov, Problems of generalized localization for spherical partial sums. (English) 4 th International conference on research and education in mathematical sciences, INSPEM, UPM, Malaysia, October 21-23, 2009.Invited Speaker.
  21. R. Ashurov and Anvarjon Ahmedov, On the divergence of the expansions of continuous functions from Nikolskii classes. (English) 4 th International conference on research and education in mathematical sciences, INSPEM, UPM, Malaysia, October 21-23, 2009.
  22. R. Ashurov, On the multiple Fourier integrals of continuous functions from Sobolev spaces.(English) International conference ATGi 2009, SPACE2009, ITMA, UPM, November 3-5, 2009.Lead Speaker.
  23. R. Ashurov and A. Butaev, On the Pinsky phenomenon. (English) Simposium Kebangsaan Sains Matematik Ke – 17, Melaka, Malaysia, December 15-17, 2009.
  24. Ahmedov and R. Ashurov, The almost-everywhere convergence of the multiple Fourier integrals.(English) 14 th International Congress on Computational and Applied Mathematics, Ankara University, Turkey, September 29 – October 2, 2009.
  25. R. Ashurov, Wavelets: Recent applications in Remote Sensing, International Conference Malaysian Remote Sensing Society 2010, April 28-29. Invited Speaker.
  26. R. Ashurov,On the poinwise convergence of the continuous wavelet transforms of Lp-functions, Regional Conference on Applied and Engineering Mathematics (RCAEM 2010), Penang, Malaysia, 1-4 June, 2010.
  27. R. Ashurov and A. Butaev, On the Pinsky phenomenon and the Kahane theorem, International Workshop on Mathematical Analysis, INSPEM, UPM, 22-24 June, 2010.
  28. R. Ashurov, On the almost-everywhere convergence of the continuous wavelet transforms. (English). International Conference: The Sixth Dynamical Systems and Applications-2010, Antalya, Turkey, 10-14 July, 2010.
  29. R. Ashurov,Second Generation Wavelets,The 4th World Engineering Congress 2010 (WEC2010), Kuching, Sarawak, Malaysia, 2-5 August, 2010.
  30. R.Ashurov, On convergence of continuous wavelet transforms on entire Lebesque set of functions,International Workshop on Recent Achievements on Harmonic Analysis, Algebras and Their Applications I, International Islamic University Malaysia, Kuantan 17-20 August, 2010.
  31. R. Ashurov and A. Butaev,  Nonspherical partial sums and the Pinsky phenomenon. (English). The International Congress of Mathematicians(ICM), Hyderabad, India,19-27 August, 2010.
  32. R. Ashurov and A. Butaev, On the Pinsky and the Kahane theorems, Meeting of the American Mathematical Society, Richmond University, Richmond, Virginia, USA, 5-6 November, 2010.
  33. R. Ashurov and A. Butaev, OnNonspherical Partial Sums of the Multiple Fourier Integrals, The 2ndInternational Conference on Mathematical Sciences, Putra World Trade Centre, Kuala Lumpur, Malaysia, Nov 30 – Dec 2, 2010.
  34. R. Ashurov and S. Karaev, On eigenfunction expansions of piecewise smooth functions, associated with the power of the Schrόdinger operator,Seminar Kebangsaan  Aplikasi Sains and Matematik (SKASM2010),  Jahor Bahru, Malaysia, 8-10 December, 2010.
  35. Rakhimov and R. R. Ashurov, On the construction of non linear econometric models, 2nd International Conference on Business and Economic Research (2nd ICBER 2011), Langkawi, Malaysia, 14-16 March, 2011.
  36. R. Ashurov and A. Butaev, On continuous wavelet transforms of distributions from negative Sobolev classes, Conference Melaka, Malaysia, 12-14 April, 2011.
  37. R.Ashurov and A. Butaev, On pointwise convergence of continuous wavelet transforms, International Symposium in Approximation Theory, Vanderbilt University, Nashville, Tennessee, USA, May 17-20, 2011.
  38. R.Ashurov and A. Butaev, On pointwise convergence of continuous wavelet transforms and applications,International Workshop on Recent Achievements on Harmonic Analysis, Algebras and Their Applications II, International Islamic University Malaysia, Kuantan, 15-18 August, 2011.
  39. R. Ashurov and Almaz Butaev, Generalized localization of Fourier integrals for distributions“Mathematical Methods of Quantum mechanics and related problems” on 11-12 October 2011, Department of Computational & Theoretical Sciences, Faculty of Science, IIUM, Kuantan Campus.
  40. R. Ashurov, “How to write your scientific paper”,Workshop on Research in Mathematics and its Applications, University Kuala Lumpur,Malaysian Institute of Industrial Technology, 1–2  December, 2011, Johor Bahru.
  41. R. Ashurov, A. Butaev, “Nonspherical Partial Sums and the Pinsky Phenomenon”, The Fourth  International Conference on Scientific Computing and Partial Differential  Equations (SCPDE 11), 5-9 December, 2011, Baptist University, Hong Kong
  42. R. Ashurov, A. Butaev, “H L,p distributions and Spherical Wavelet Transforms”, Regional Annual Fundamental Science Symposium 2011, 20-21 December, 2011,Johor Bahru.
  43. R. Ashurov, A. Butaev,  “On localization principle and compactly supported distributions”,Regional Annual Fundamental Science Symposium 2011, 20-21 December, 2011, Johor Bahru.
  44. R. Ashurov, On the pointwise convergence of the continuous wavelet transforms of Lp – functions, Uncorrect and nonclassical problems of mathematical physics and analysis, Samarkand State University, Samarkand, Uzbekistan, 5-6 July, 2012.Invited Speaker.
  45. R.Ashurov, A. Butaev,  On the Pinsky phenomenon and on the Kahane theorem,Operator Algebra and concerned problems, National University of Uzbekistan, Tashkent, Uzbekistan. 10-14 September, 2012.
  46. R. Ashurov, On the multiple Fourier Integrals of continuous functions from the Sobolev spaces,Actual problems of mathematical analysis,Urgench State University, Urgench, Uzbekistan, 9-10 November, 2012.
  47. R.Ashurov, WAVELETS: What featuresmake them so unusuallypopular?Mathematics and innovation teaching methods, Financial Institute of Tashkent, 23 April, 2013, Invited Speaker.
  48. R. Ashurov and Almaz Butaev, On the Pinsky phenomenon and the Kahane theorem, Analysis Workshop, California State University, Fullerton, Department of Mathematics, 12-13 June, 2013, Fullerton, USA, Invited Speaker.
  49. Turmetov and R. Ashurov, On solvability of the Neumann boundary value problem for non-homogeneous polyharmonic equation in a ball, International Conference on Natural Sciences (ICNS 2013), Samarkand, 15-17 August, 2013, p.21.
  50. Batirkhan Turmetov and Ravshan Ashurov, On solvability of the Neumann boundary value problem for non-homogeneous polyharmonic equation,Crimea International Mathematical Conference, Sudak, Crimea, Ukraine, September 22-October 4, 2013, p. 60.
  51. Ravshan Ashurov, Batirkhan Turmetov, On solvability of the Neumann type boundary value problem for non-homogeneous biharmonic equation, Modern problems of Differential equations and their applications, National University of Uzbekistan, Tashkent, 21-23 October,2013, p.218.
  52. Ravshan Ashurov, Almaz Butaev, On generalized localization of Fourier inversion for distributions, USA-Uzbekistan Conference on Analysis and Mathematical Physics, Fullerton, CA, USA, 20-23 May, 2014.Invited Speaker.
  53. Ravshan Ashurov On the multiple Fourier integrals of picewise smooth functions, Modern problems of Applied Mathematics and IT, Al-Xorezmiy 2014, Samarkand, 15-17 September, 2014.
  54. Ravshan Ashurov, On convergence almost everywhere and generalized localization of the Multiple Fourier Integrals and Series, Nonclassical equations of mathematical physics and their applications, Tashkent, 23-25 October, 2014.
  55. Turmetov B., Ashurov R., On solvability of the Neumann boundary value problem for non-homogeneous polyharmonic equation in a ball, Modern problems of Geometry and its applications, Tashkent, 27-28 October, 2014. Invited Speaker.
  56. Ravshan Ashurov, On a theorem of Alimov on convergence almost everywhere of spectral resolutions of elliptic differential operators,Contemporary methods of mathematical physics, Tashkent, 2015.
  57. Ashurov, K. Buvaev, On convergence almost everywhere spectral resolutions of smooth functions, Contemporary methods of mathematical physics, Tashkent, 2015.
  58. Ashurov, On the multiple Fourier integrals and series of the piecewise smooth functions, Modern problems of Applied Mathematics and IT, Al-Xorezmiy 2016, Buxoro, 9-10 November, 2016.
  59. Ashurov, A. Butaev, On pointwise convergence of continuous wavelet transforms, Second USA-Uzbekistan Conference on Analysis and Mathematical Physics, Urgench, Uzbekistan, 8-12 August, 2017, Invited Speaker.
  60. Ashurov, Pointwise convergence of continuous wavelet transforms, Actual problems of differential equations and their applications, Tashkent, Uzbekistan, December 15-17, 2017.
  61. Dzamalov S.Z, R.R. Ashurov, A.S. Nishanboev, On correctness of some inverse problems with nonlocal boundary conditions for Chapligin’s equation in three-dimensional space, Actual problems of applied mathematics and information technology – Al Khorezmi, Tashkent, September 13-15, 2018.
  62. Dzamalov S.Z, R.R. Ashurov, On correctness of some inverse problems with periodic conditions for Tricomi’s equation in three-dimensional space, Actual problems of applied mathematics and information technology – Al Khorezmi, Tashkent, September 13-15, 2018.
  63. Dzamalov S.Z, R.R. Ashurov, On correctness of some inverse problems with periodic conditions for Tricomi’s equation, International Conference “Mathematical analysis and its applications”, Samarkand, September 17-20, 2018.
  64. Dzamalov S.Z, R.R. Ashurov,  On a nonlocal boundary-value problem for a loaded mixed type equation of first type and second order, International conference “Problems of applied mathematics”, Nalchik, Russia, May 22-26, 2018.
  65. Dzhamalov S.Z., R.R. Ashurov, On a linear invers problem for multidimensional mixed type equation of second type and second order, International Conference “Differential Equations”, Sterlitamak, Russia,  June 25-29. 2018
  66. R. Ashurov, Yu.E. Faiziev, Principle of generalized localization for continuous wavelet expansions, Mathematical Analysis and its application to mathematical physics, Samarcand, September 17-20, 2018.
  67. DzhamalovZ., R.R. Ashurov, On a nonlocal boundary-value problem for a loaded mixed type equation, V- International conference “Nonlocal boundary problems”, Nalchik, Russia, December 4-7, 2018.
  68. R. Ashurov, Solution of the problem of generalized localization for spherical partial sums of multiple Fourier series, International Conference, Moscow State University, Moscow, Russia, May 13- 16, 2019.
  69. R. Ashurov, Generalized localization for spherical partial sums of multiple Fourier series, The Second Uzbekistan-Israel Conference, Invited Speaker, National University of Uzbekistan, Tashkent, Uzbeksiatan, May 16-19, 2019.
  70. R. Ashurov, Generalized localization for continuous wavelet transforms, Invited Speaker, Conference on Mathematics and Information Technology, Fergana State University, Fergana, Uzbekistan, 22 May, 2019.
  71. R. Ashurov, Solution of the generalized localization problem  for spherical partial sums of multiple Fourier series, 1 st China-Central Asia Joint Meeting, Chengdu, China, 15-20. 09.2019.
  72. S.Z. Dzhamalov, R.R. Ashurov, U.Sh. Ruziev. On the unique solvability of a nonlocal boundary value problem for a loaded multidimensional Chaplygin equation in Sobolev space. // Republican scientific conference “Actual problems and applications of analysis” with the participation of foreign scientists. October 4-5, 2019. Karshi State University, Karshi. Uzbekistan
  73. S.Z. Dzhamalov,   R.R. Ashurov, U.Sh. Ruziev. On one linear problem for the multidimensional Chaplygin equation.// International Conference “Inverse and Scientific Problems”. October 2–4, 2019, Samarkand State University, Moscow Samarkand, Uzbekistan.
  74. Z.Dzhamalov, R.R.Ashurov, U.Sh.Ruziev. On the unique solvability of non-local boundary value problems for a loaded multidimensional equation of mixed type of the second order.// Republican scientific conference with the participation of foreign scientists. Fergana. 12.03-13.03.2020. p.55
  75. R. Ashurov. Convergence almost everywhere of spherical partial sums of multiple Fourier series.// Republican scientific conference with the participation of foreign scientists. Fergana. 12.03-13.03.2020. p. 3. Plenary talk.
  76. R. Ashurov. Determination of the order of fractional derivative for subdiffusion equations, // International Workshop on Fractional Calculus, 9-10 June, 2020, Ghent Analysis and PDE center, Ghent University, Belgium. Plenary talk.
  77. R. Ashurov, Y. Fayziev, Determination of fractional order and source term in a fractional subdiffusion equation,// Uzbekistan – Malysia international online conference Computational models and technologies, Tashkent, August 24-25, 2020
  78. R. Ashurov, Inverse problem of determining an order of the Riemann-Liouville time-fractional derivative.// Uzbekistan – Israil International online conference “Frontier in mathematics and Computer sciences”, 12-15 October, 2020. Plenary talk.
  79. Z. Dzhamalov, R.R. Ashurov. Linear and Nonlinear Inverse Problems for a Multidimensional Mixed Type Equation of the Second Kind, Second Order// International Conference “Marchuk Scientific Readings-2020”. Novosibirsk.19.10-23.10. 2020 p.120.
  1. R.R. Ashurov. Inverse problem for determining the order of the fractional derivative in the subdiffusion equations. // Republican scientific conference with the participation of foreign scientists “Modern methods of mathematical physics and their applications”. Tashkent. 17.11-18.11. 2020 from. Plenary talk.
  1. R. Ashurov. Generalized localization and summability almost everywhere of multiple Fourier series and integrals. // Republican scientific conference with the participation of foreign scientists “Modern methods of mathematical physics and their applications”. Tashkent. 17.11-18.11. 2020.
  1. S.Z. Dzhamalov, R.R. Ashurov. Linear and nonlinear inverse problems for a multidimensional mixed type equation of the first kind, second order.// Republican scientific conference with the participation of foreign scientists “Modern methods of mathematical physics and their applications”. Tashkent. 17.11-18.11. 2020 p.385
  2. R.R. Ashurov, A.T. Mukhiddinova. Fourier method for solving initial-boundary value problems. // Republican scientific conference with the participation of foreign scientists “Modern methods of mathematical physics and their applications”. Tashkent. 17.11-18.11. 2020.
  3. R.R. Ashurov, R.T. Zunnunov. The inverse problem of determining the order of the fractional derivative in mixed type equations. // Republican scientific conference with the participation of foreign scientists “Modern methods of mathematical physics and their applications”. Tashkent. 17.11-18.11. 2020
  4. R.R. Ashurov, Y. Fayziev, Determination of fractional order and source term in a fractional subdiffusion equation, // Fifth International Conference on Analysis and Applied Mathematics (ICAAM 2020), Lefkosa (Nicosia): Near East University, 23-30 September, 2020. P.42.
  1. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov, On a nonlocal boundary value problem for the three-dimensional Tricomi equation in an unbounded prismatic domain.// Tashkent, 1.06-2.06. 2021.
  2. R. Ashurov, R.T. Zunnunov. An analogue of the tricomi problem for a mixed-type equation with a fractional derivative. Reverse problem. // Tashkent, 1.06-2.06. 2021. pp. 234-240.
  3. R. Ashurov, Yu.E. Faiziev. The inverse problem of determining the order of the fractional derivative in the wave equation // Tashkent, 1.06-2.06. 2021, pp. 229-234.
  4. R. Ashurov, A.T. Mukhiddinova. The inverse problem of determining the density of heat sources for the subdiffusion equation. // International scientific-practical “Problems of modern fundamental and applied mathematics”. Nur-Sultan. 04.06. 2021.
  5. R. Ashurov, An analogue of the Tricomi problem for a mixed-type equation with a fractional derivative. Inverse problems, // International scientific-practical “Problems of modern fundamental and applied mathematics”. Nur-Sultan. 04.06. 2021.
  6. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On a semi-nonlocal boundary value problem of periodic type for the three-dimensional Tricomi equation in an unbounded prismatic domain. // Traditional international April mathematical conference in honor of the Day of Science Workers of the Republic of Kazakhstan, dedicated to the 75th anniversary of Academician of the National Academy of Sciences of the Republic of Kazakhstan T. Sh. Kalmenov. 5.04-8.04.2021. p.21-23.
  7. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On one semi-nonlocal boundary value problem for the three-dimensional Chaplygin equation in a prismatic unbounded domain.// All-Russian scientific-practical conference with international participation “Topical issues of thermal physics, energy and fluid dynamics in the Arctic” dedicated to the 85th anniversary of the honored worker of science of the Russian Federation and YaASSR, Doctor of Technical Sciences, Professor E. A. Bondarev. July 12-17, 2021, Yakutsk, Russia.
  8. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On one semi-nonlocal boundary value problem for the three-dimensional Tricomi equation in an unbounded prismatic domain.// XV International Scientific Conference “Differential Equations and Their Applications in Mathematical Modeling”, 2021, July 15-18, Saransk.
  9. Z.Dzhamalov, R.R.Ashurov, X.Sh.Tyrakylov  The linear inverse problem for the three-dimensional Tricomi equation with nonlocal  boundary conditions of periodic type  in an prismatic unbounded domain // Modern methods, problems and applications of operator theory and harmonic analysis –x otha-2021. 22-27 August 2021, Rostov-on-don, Russia
  10. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On one inverse problem for the three-dimensional Chaplygin equation with semi-nonlocal boundary conditions in an unbounded prismatic region. ANRB KB. Sabitova. Sterletamak September 12-15, 2021.
  11. Ashurov R.R., Zunnunov R.T. An inverse problem for determining the order of a fractional derivative in mixed type equations. // IX-international scientific conference “Modern problems of mathematics and physics” dedicated to the 70th anniversary of Corr. ANRB KB. Sabitova. Sterletamak September 12-15, 2021
  12. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On a non-local boundary value problem of a periodic type for the three-dimensional Chaplygin equation in an unbounded prismatic domain.// XVI- International Scientific Conference “Theory of Operators and Differential Equations”. 20.09-25.09.2021. Vladikavkaz.
  13. R. Ashurov, Yu.E. Faiziev. The inverse problem of determining the order of the fractional derivative in the wave equation, // XVI- International Scientific Conference “Theory of Operators and Differential Equations”. 20.09-25.09.2021. Vladikavkaz.
  14. R. Ashurov, Yu.E. Faiziev. On some boundary value problems for elliptic equations with boundary operators of fractional order // Sarymsakov Readings 16.09 -18.09. 2021 Tashkent, Uzbekistan
  15. Z.Dzhamalov, R.R.Ashurov, Kh.Sh.Turakulov. On one inverse problem for a mixed-type equation of the first kind in a prismatic unbounded domain // International Conference “Marchuk Scientific Readings 2021”, 4.10 – 8.10. 2021, Akademgorodok, Novosibirsk, Russia.
  16. Z.Dzhamalov, R.R.Ashurov, H.Sh.Turakulov. On one nonlocal boundary value problem for the three-dimensional Chaplygin equation in a prismatic unbounded domain // International Scientific Conference “Ufa Autumn Mathematical School”. 6.10-9.10.2021 Ufa, Russia.
  17. R. Ashurov, R. Zunnunov, An analogue of the Tricomi problem for mixed-type equation with a fractional derivative. Inverse problems, CIMPA, Xorazm, October 30-31, 2021
  18. R. Ashurov, Yu. Fayziev, On the nolocal problems in time for time-fractional subdiffusion equation , Differential Equations and Related Problems of Analysis, Bukhara, November 1-5, 2021.
  19. R. Ashurov, Yu. Fayziev, On the nonlocal problems for subdiffusion equations, Al Xorezmiy International Conference, Fergana, 15-17 November, 2021.
  20. Ashurov R. R., Fayziev Yu. E., On some boundary value problems for equations with boundary operators of fractional order, Contemporary Mathematics and its Applications-2021, Tashkent, November 19-20, 2021.
  21. Ашуров Р.Р. Solution of the problem of generalized localization for spherical partial sums of multiple Fourier series,// “Analysis and Applied Mathematics” Weekly Online Seminar, Bahçeşehir University, Istanbul, Turkey,Analysis & PDE Center, Ghent University, Ghent, Belgium Institute Mathematics & Math. Modeling, Almaty, Kazakhstan. 03.2022
  22. R. Ashurov, M. Shakarova, Time-dependent source identification problem for fractional Schrödinger type equations, Plenary Talk, Modern Problems of IT and applied Mathematics, International Conference, Bukhara, Uzbekistan, 11-12 May, 2022.
  23. R.R., Mukhiddinova O.T. Initial-boundary value problems for fractional order equations whith the Riemann-Liouville derivative// The First Al-Khorezmi International Conference on Modern Problems of Mathematics.// section IV: mathematical physics and PDE July 25-28, 2022.
  24. R.R., On the non-local problems in time for time-fractional subdiffusion equations // The First Al-Khorezmi International Conference on Modern Problems of Mathematics.// Plenary Talk, July 25-28, 2022.
  25. Ashurov R.R., Fayziyev Yu.E., Khudoykulova M.U. Inverse problem for a subdiffusion equation with time dependent coefficient // Международная научная конференция.// Ташкент, 6-8 октября 2022 года.
  26. Ашуров Р.Р., Зуннунов Р. Т. Аналог задачи Бицадзе-Самарского для уравнения смешенного типа с дробной производной в неограниченной области // Международная научная конференция.// Ташкент, 6-8 октября 2022 года.
  27. Ahsurov R.R., Backward and non-local problems for the Rayleigh-Stokes equation // Международная научная конференция.// Ташкент, 6-8 октября 2022 года.

International / National Seminars, Workshops

  1. Seminar “Spectral theory of linear operators” at the NationalUniversity of Uzbekistan, supervisor prof. Sh.A.Alimov. Uzbekistan Many lectures have been given.
  2. Seminar “Nonclassical differential equations” at the Institute of Mathematics and Information Technology, Tashkent, supervisors prof. M.S.Salahiddinov and T.D.Djuraev. Uzbekistan, Many lectures have been given.
  3. Seminar “Partial differential equations” at the MoscowStateUniversity, supervisors prof. V.A.Il’in, E.I.Moiseev.Russia, Many lectures have been given.
  4. Seminar “Mathematical analysis” at the BirminghamUniversity, UK, supervisor prof. W.N.Everitt.Many lectures have been given in 1984, 1985, 2000, 2001.
  5. Seminar “Spectral Theory” at the Kings College of London University, UK, supervisor prof. E.B.Davis. I gave a lecture in 1985.
  6. Seminar “Differential Equations” at the CardiffUniversity, Cardiff, UK, supervisor prof. B.D.Evans. I gave a lecture in 1985.
  7. Seminar “Mathematical Analysis” at the OxfordUniversity, Oxford, UK, supervisor prof. G.B.McLeod. I gave a lecture in 1985.
  8. Seminar “Nonlinear Differential Operators” at the EdinburghUniversity, Scotland, UK, supervisor prof. M.Ball. I gave a lecture in 1985.
  9. Seminar “Mathematics” at the ICTP, Trieste, Italy.I gave lectures in 1999, 2001, 2004, 2006.
  10. Seminar “Mathematical analysis” at the SienaUniversity, Siena, Italy, supervisor prof. R.Chiappanelli.I gave a lecture in 1999.
  11. Seminar at the Institute for Mathematical Research, University of Putra Malaysia. I gave a lecture on December, 2003.
  12. Seminar “Mathematical analysis” at the New Mexico University, New Mexico, USA, supervisor prof. C.Pereyra.I gave a lecture on January, 2007.
  13. Seminar at the Institute for Mathematical Research, University of Putra Malaysia. I gave a lecture on 20.02 2009.
  14. Seminar at the Institute for Mathematical Research, University of Putra Malaysia. I gave a lecture on 22.05. 2009.
  15. Seminar at the Department of Computational and Theoretical Sciences of the International Islamic University of Malaysia. I organized a two days workshop on December 3, 4, 2009.
  16. Institute of Advanced Technology, UPM. I organized together with Prof. A. Rakhimov, Pakistan, and Dr , Helmi Z. M. Shafri, UPM,a one day workshop onApril 12, 2010.
  17. Seminar at the Institute for Mathematical Research, University of PutraMalaysia. I gave lecture titeled:“On the almost-everywhere convergence of the continuous wavelet transforms” on August 30, 2010. This is my lecture which I have delivered at Antalya Conference, 2010.
  18. International Islamic University, Kuantan, MALAYSIA.I have participated with a talk atWorkshop: On the recent achievements on harmonic analysis, algebras and their applications, 18-19 August, 2010.
  19. International Islamic University, Kuantan, MALAYSIA. I have participated with a talk atmeeting concerning the organizationof a scientific group working in the area of Differential Equations and Algebra. 5-7 January, 2012.
  20. Vanderbilt University, Nashville, Tennessee, USA,January 13. 2017. Lecture at the seminar of prof Marcelo Disconzi.