LECTURE NOTES OF TICMI

Lecture Notes of TICMI publishes peer-reviewed texts of courses given at Advanced Courses and Workshops organized by TICMI (Tbilisi International Center of Mathematics and Informatics). The advanced courses cover the entire field of mathematics (especially of its applications to mechanics and natural sciences) and from informatics which are of interest to postgraduate and PhD students and young scientists.

Editor: George Jaiani

I. Vekua Institute of Applied Mathematics

Tbilisi State University

2, University st., Tbilisi 0186, Georgia

Tel.: (+995 32) 2 18 80 98

e.mail: giorgi.jaiani@tsu.ge

Members of the International Scientific Committee of TICMI:

Lucian Beznea, Bucharest, Simion Stoilow Institute of Mathematics of the Romanian Academy, e.mail: Lucian.Beznea@imar.ro

Alice Fialowski, Budapest, Institute of Mathematics, Pazmany Peter setany 1/C, e.mail: fialowsk@cs.elte.hu

George Jaiani (Chairman),Tbilisi, I.Vekua Institute of Applied Mathematics, Tbilisi State University, e.mail: giorgi.jaiani@tsu.ge

Vakhtang Kvaratskhelia, Tbilisi, N. Muskhelishvili Institute of Computational Mathematics, e.mail: v_kvaratskhelia@yahoo.com

Alexander Meskhi, Tbilisi, A. Razmadze Mathematical Institute, Tbilisi State University, e.mail: meskhi@rmi.ge

David Natroshvili, Tbilisi, Georgian Technical University, e.mail: natrosh@hotmail.com

Eugene Shargorodsky, London, King's College London, e.mail: eugene.shargorodsky@kcl.ac.uk

Managing Editor: N. Chinchaladze

English Editor: Ts. Gabeskiria

Technical editorial board: G. Akhalaia

M. Tevdoradze

M. Sharikadze

C O N T E N T S

Lecture Notes of TICMI

Volume 22, 2021