Differential equations and their applications, Numerical methods of solving hydrodinamic problems, Filterion problems, Inverse problems for PDE, Theory of finite difference schemes and applications

Professor Ashyralyyev was born in 1964 in the village of Konekesir in Turkmenistan. In 1981 he graduated Physics and Mathematics Special School at the Novosibirsk State University (NSU) in Novosibirsk, Russia. In 1986 he graduated Faculty of Mechanics and Mathematics of Novosibirsk State University on program mathematics and applied mathematics.. 1986-1987 he worked as a stajer teacher at NSU. 1987-1990 graduated Doctora program at NSU. In 1991 he defended his Ph.D. thesis at NSU. 1992-1994 worked at the Institute of Mathematics and Mechanics of the Academy of Sciences of Turkmenistan as the head of the laboratory, scientific secretary of Institute. 1994 awarded the academic title Associate Professor of the Higher Attestation Commission of Turkmenistan. 1994-2012 he worked at the Turkmen Agricultural University named after S.A. Niyazov, Associate Professor, Head of the Department of Mathematics and Computer Engineering (1994-1997) and Head of the Department of Computer Technologies (1998-2012). Ashyralyyev was local coordinator in 3 international Tempus projects of the European Union (2005-2012) and coordinator in 2 national research projects of Turkmenistan (1992-1994, 1998-2000). 2012-2022 worked at the Department of Engineering Mathematics, Faculty of Engineering and Natural Sciences, Gumushane University of Turkey. 2012-2015 as Associate Professor, 2015 - 2022 he had been working as a Professor of the department. Since 2022, he has been working as Professor of the Department of Mathematics, Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey. Professor Ashyralyyev has more than 70 published scientific articles (of which 45 publications in Web of Science and 55 in Scopus journals). The total number of articles published in Q1 level journals is 14, and 4 of them were published in the last three years. In addition, a total of 8 books were published, one in Russian, one in Turkish and six in Turkmen. Professor Ashyralyyev was co-editor of 6 volumes of AIP Conference Proceedings and co-editor of 4 booklets of international conference materials. He was supervisor of 2 PhD Students and 9 Master Students.

1. Charyyar Ashyralyyev, “On the second order of accuracy stable difference scheme for integral type non-local elliptic source identification problem”, Computational & Applied Mathematics, 41:4 (2022), 179      
2. Allaberen Ashyralyev, Ahmad Al-Hammouri, Charyyar Ashyralyyev, “On the absolute stable difference scheme for the space-wise dependent source identification problem for elliptic-telegraph equation”, Numerical Methods For Partial Differential Equations, 37:2 (2021), 962-986      
3. Charyyar Ashyralyyev, “Stability of Rothe difference scheme for the reverse parabolic problem with integral boundary condition”, Mathematical Methods in the Applied Sciences, 43:8 (2020), 5369-5379      
4. Charyyar Ashyralyyev, “High order of accuracy difference schemes for the inverse elliptic problem with Dirichlet condition”, Boundary Value Problems, 2014, 5      
5. Allaberen Ashyralyev, Charyyar Ashyralyyev, “On the problem of determining the parameter of an elliptic equation in a Banach space”, Nonlinear Analysis-Modelling and Control, 19:3, SI (2014), 350-366      

• Bahçesehir University, Istanbul
• University of Uzbekistan named after Mirzo Ulugbek, Tashkent, Uzbekistan