RUS  ENG
Full version
JOURNALS // Trudy Instituta Matematiki i Mekhaniki UrO RAN // Archive

Trudy Inst. Mat. i Mekh. UrO RAN, 2023 Volume 29, Number 3, Pages 168–184 (Mi timm2025)

On the optimal correction of improper convex programming problems based on the method of quasi-solutions

V. D. Skarin

N.N. Krasovskii Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: The work continues the author's research on the construction of possible approximations for improper problems of convex programming. The problem of minimizing the objective function of the original problem on the set of minimum points of the Chebyshev norm of the constraint discrepancy is defined as a basic model for correcting an improper problem. For this setting, one of the classical methods of regularization of ill-posed extremal problems is used, namely, the method of quasi-solutions. This method is based on the transition to a problem of unconstrained minimization by aggregation of the constraint function of the original problem. For this purpose, a modification of the penalty function method is used, namely, the generalized inverse barrier function method. This approach seems to be promising from the point of view of the numerical implementation of the quasi-solution method. Convergence conditions are formulated for the proposed method, including the case where the input data are given inaccurately. Special attention is paid to finding the value of optimal correction of the constraints in the improper problem of convex programming under study and to calculating the optimal value of the regularization parameter in the method of quasi-solutions.

Keywords: convex programming, improper problem, optimal correction, method of quasi-solutions, barrier function methods.

UDC: 519.853

MSC: 47N05, 37N25, 37N40

Received: 27.03.2023
Revised: 14.07.2023
Accepted: 21.07.2023

DOI: 10.21538/0134-4889-2023-29-3-168-184



Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024