Contents

Saint-Venant's Problems for Three-Layered Concentric 
Isotropic Circular Beams
G. Khatiashvili 
Article (pdf) ..................................................... 1 
 
On Variational Formulation of Some Nonlocal Boundary Value Problems 
by Symmetric Continuation Operation of a Function
G. Lobjanidze 
Article (pdf) ..................................................... 15
 
A Classes of Optimal and Burst-Error-Correcting (n,k)-Codes
R. Megrelishvili, M. Chelidze 
Article (pdf) ..................................................... 23 
 
On the Construction of Secret and Public-Key Cryptosystems
R. Megrelishvili, M. Chelidze, K. Chelidze 
Article (pdf) ..................................................... 29 
 
Asymptotical Expansion of Hypergeometric Functions 
in Terms of Parameters
D. Melikdzhanian 
Article (pdf) .................................................... 37 
 
Calculation of the Values of Hypergeometric Functions
D. Melikdzhanian 
Article (pdf) .................................................... 53 
 
On Stability and Convergence of Symmetric Three-Layer Semidiscrete 
Scheme for Abstract Analogue of Nonlinear Kirchhoff Wave Equation 
J. Rogava, M. Tsiklauri 
Article (pdf) .................................................... 69 
 
One Method of Constructing a Formal System
Kh. Rukhaia, L. Tibua, G. Chankvetadze, B. Dundua 
Article (pdf) .................................................... 81 
 
Abstracts (Georgian)................................................. 90