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JOURNALS // Informatsionnye Tekhnologii i Vychslitel'nye Sistemy // Archive

Informatsionnye Tekhnologii i Vychslitel'nye Sistemy, 2020 Issue 2, Pages 3–9 (Mi itvs405)

MATHEMATICAL FOUNDATIONS OF INFORMATION TECHNOLOGY

Weighted admissible absolute 1-center problem

S. I. Fainshtein, A. S. Fainshtein, V. E. Torchinsky

G. I. Nosov Magnitogorsk State Technical University, Magnitogors, Russia

Abstract: This paper presents a polynomial algorithm for new generalization of the absolute 1-center problem (A1CP) in general undirected graph with each edge having a positive weight vector (length for the first coordinate and costs for all the other coordinates) and with each vertex having non-negative weight vector. We assume that the cost is a linear function of the length on edge. Non-negative cost boundaries are also given. AA1CP (admissible absolute 1-center problem) minimizes the weighted length of path between a point on edge and the farthest vertex provided that any weighted cost of path from the point to any vertex does not exceed the corresponding cost boundary.

Keywords: vertex-weighted absolute 1-center problem, admissible absolute 1-center problem.

DOI: 10.14357/20718632200201



© Steklov Math. Inst. of RAS, 2024