A laminarity property of the polyhedron described by a weakly posi-modular set function
نویسندگان
چکیده
منابع مشابه
Optimal Augmentation of a Submodular and Posi - modular Set Function by a Multigraph
Given a nite set V and a set function f : 2 V 7! Z, we consider the problem of constructing an undirected multigraph G = (V;E) such that the cut function c G : 2 V 7! Z of G and f together has value at least 2 for all non-empty and proper subsets of V . If f is intersecting submodular and posi-modular, and satis es the tripartite inequality, then we show that such a multigraph G with the minimu...
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ژورنال
عنوان ژورنال: Discrete Applied Mathematics
سال: 2000
ISSN: 0166-218X
DOI: 10.1016/s0166-218x(99)00198-5