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: **
**G. 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: george.jaiani@viam.sci.tsu.ge

__International Scientific Committee of TICMI:__

Alice Fialowski, Budapest, Institute of Mathematics, Pazmany Peter setany 1/C

Pedro Freitas, Lisbon, University of Lisbon

George Jaiani (Chairman)__,__Tbilisi,
I.Vekua Institute of Applied Mathematics, Tbilisi State University

Vakhtang Kvaratskhelia, Tbilisi, N. Muskhelishvili Institute of Computational Mathematics

Olga Gil-Medrano, Valencia, Universidad de Valencia

Alexander Meskhi, Tbilisi, A. Razmadze Mathematical Institute, Tbilisi State University

David Natroshvili, Tbilisi, Georgian Technical University

Managing Editor: N. Chinchaladze

English Editor: Ts. Gabeskiria

Technical editorial board: M. Tevdoradze

M. Sharikadze