At the Dissertation Council of “SDU University”, within the EP “8D05401 – Mathematics“, a doctoral dissertation will be defended for the degree of Doctor of Philosophy (PhD) by Shynarbek Nurdaulet Kairatuly on the topic: «Computational and Analytic Approaches in Generalized Continued Fractions» in the speciality EP «8D05401– Mathematics».

The dissertation was prepared at the Department of “Mathematics and Natural Sciences” of “SDU University”. 

Form of defense: series of publications.

1. Shynarbek N., Kadyrov S., Orynbassar A., Tahir M. A. Raising operators and a parametric polynomial continued fraction for π^2 // Electronic Research Archive. 2026. Vol. 34, No. 6. P. 3895-3913. DOI: 10.3934/era.2026175. Web of Science: Q1. Scopus percentile: 76.
2. Kadyrov S., Shynarbek N., Orynbassar A. On the solutions of second order difference equations with variable coefficients // Journal of Interdisciplinary Mathematics. 2025. Vol. 28, No. 4. P. 1517-1527. DOI: 10.47974/JIM-2093. Web of Science: Q2. Scopus percentile: 55.
3. Kadyrov S., Shynarbek N., Orynbassar A., Tahir M. A. Novel representations of log2 with polynomial continued fractions // Arabian Journal of Mathematics. 2026. Vol. 15. P. 247-254. DOI: 10.1007/s40065-025-00543-x. Web of Science: Q2. Scopus percentile: 67.

The defense will be held in English.

Official reviewers:

1. Markhabatov Nurlan – Candidate of Physical and Mathematical Sciences, Senior Lecturer, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan;
2. Zaighum Muhammad Asad – PhD, Associate Professor, K. Zhubanov Aktobe Regional University, Aktobe, Kazakhstan.

Scientific consultants:

1. Kadyrov Shirali Maratzhanovich – PhD, Professor, SDU University, Kaskelen, Kazakhstan;
2. Francesco Sica – PhD, Assistant Professor, Florida Atlantic University, Boca Raton, USA.

Composition of permanent members of the Dissertation Council:

1. Dairbekov Nurlan – Doctor of physical and Mathematical Sciences, Professor, Chief Researcher at the Institute of Mathematics and Mathematical Modeling, Chair of Dissertation Council, Almaty, Kazakhstan;
2. Ismailov Nurlan — PhD, Associate Professor, Astana IT University, Deputy Chairman of the Dissertation Council, Astana, Kazakhstan;
3. Kadyrov Shirali – PhD, Professor, SDU University, member of the Dissertation Council, Kaskelen, Kazakhstan;
4. Arepova Gaukhar – PhD, Associate Professor, SDU University, Scientific secretary of Dissertation Council, Almaty, Kazakhstan. 

Composition of temporary members of the Dissertation Council:

1. Yeliussizov Damir Askarovich – PhD, Professor, Kazakh-British Technical University, Almaty, Kazakhstan;
2. Kalmurzayev Birzhan Seilkhanovich – PhD, Associate Professor, Kazakh-British Technical University, Almaty, Kazakhstan;
3. Abdul Wahab – PhD, Associate Professor, Sultan Qaboos University, Muscat, Oman.

The defense will take place on July 29, 2026, at 11:00 in a hybrid format (offline/online) at the Dissertation Council for the EP “8D05401 – Mathematics” at “SDU University” at Almaty region, Kaskelen city, Abylai Khan 1/1 / on Zoom platform. 

Link:  https://zoom.us/j/94089192542?pwd=yCznBPQvD42wi80rAbKbdmMC2jTgti.1

DC Scientific secretary Arepova G.

e-mail: gaukhar.arepova@sdu.edu.kz

Phone: +7 701 273 47 85