Condense
发表于 2025-3-26 21:50:38
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delegate
发表于 2025-3-27 01:37:41
Approximate ,-MSTs and ,-Steiner Trees via the Primal-Dual Method and Lagrangean Relaxation,thms for this problem. We show that Garg’s al- gorithms can be explained simply with ideas introduced by Jain and Vazirani for the metric uncapacitated facility location and .-median problems [.], in particular via a Lagrangean relaxation technique to- gether with the primal-dual method for approxim
hematuria
发表于 2025-3-27 08:40:00
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MODE
发表于 2025-3-27 12:38:16
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垄断
发表于 2025-3-27 16:09:27
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AORTA
发表于 2025-3-27 20:34:39
Combined Connectivity Augmentation and Orientation Problems, meet a specified target connectivity, and connectivity orientation, where the goal is to find an orientation of an undirected or mixed graph that satisfies some specified edge-connection property. In the present work an attempt is made to link the above two branches, by considering degree-specified
来自于
发表于 2025-3-27 23:11:28
Bisubmodular Function Minimization,odular function minimization due to Iwata, Fleischer, and Fujishige. A bisubmodular function arises as a rank function of a delta-matroid. The scaling algorithm naturally leads to the first combinatorial polynomial-time algorithm for testing membership in delta- matroid polyhedra. Unlike the case of
你不公正
发表于 2025-3-28 02:23:00
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Stricture
发表于 2025-3-28 08:55:40
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意外
发表于 2025-3-28 11:15:18
Integral Polyhedra Related to Even Cycle and Even Cut Matroids,.-path; or the union of an even .-path and an odd circuit which share at most one vertex. Let . be a subset of vertices of even cardinality. An . is a cut of the form δ(.) where |. ∩ .| is odd and . contains exactly one of . or .. We give excluded minor characterizations for when the families of odd