Core Index of Perfect Matching Polytope for a 2-Connected Cubic Graph

For a 2-connected cubic graph G, the perfect matching polytope P(G) of G contains a special point xc=(13,13,…,13)$x^c = \left( {{1 \over 3},{1 \over 3}, \ldots ,{1 \over 3}} \right)$ . The core index ϕ(P(G)) of the polytope P(G) is the minimum number of vertices of P(G) whose convex hull contains x...

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Bibliographic Details
Main Authors: Wang Xiumei, Lin Yixun
Format: Article
Language:English
Published: Sciendo 2018-02-01
Series:Discussiones Mathematicae Graph Theory
Subjects:
Online Access:https://doi.org/10.7151/dmgt.2001