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JOURNALS // Trudy Instituta Matematiki i Mekhaniki UrO RAN // Archive

Trudy Inst. Mat. i Mekh. UrO RAN, 2018 Volume 24, Number 3, Pages 272–280 (Mi timm1568)

This article is cited in 2 papers

An algorithm for the polyhedral cycle cover problem with restrictions on the number and length of cycles

V. V. Shenmaier

Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: A cycle cover of a graph is a spanning subgraph whose connected components are simple cycles. Given a complete weighted directed graph, consider the intractable problem of finding a maximum-weight cycle cover which satisfies an upper bound on the number of cycles and a lower bound on the number of edges in each cycle. We suggest a polynomial-time algorithm for solving this problem in the geometric case when the vertices of the graph are points in a multidimensional real space and the distances between them are induced by a positively homogeneous function whose unit ball is an arbitrary convex polytope with a fixed number of facets. The obtained result extends the ideas underlying the well-known algorithm for the polyhedral Max TSP.

Keywords: cycle cover, Max TSP, polyhedral metric, optimal solution, polynomial-time algorithm.

UDC: 519.176

MSC: 05C38, 05C70, 05C85, 68R05, 90B06, 90B10, 90C27

Received: 23.04.2018

DOI: 10.21538/0134-4889-2018-24-3-272-280


 English version:
Proceedings of the Steklov Institute of Mathematics (Supplementary issues), 2019, 307, suppl. 1, S142–S150

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© Steklov Math. Inst. of RAS, 2024