Combinatorics of perfect matchings in plane bipartite graphs and application to tilings

被引:16
作者
Fournier, JC [1 ]
机构
[1] Univ Paris 12 Creteil, Equipe Combinatoire, CNRS Paris 6, Paris, France
关键词
D O I
10.1016/S0304-3975(02)00496-6
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Let G be a plane bipartite graph which admits a perfect matching and with distinguished faces called holes. Let M-G denote the perfect matchings graph: its vertices are the perfect matchings of G, two of them being joined by an edge, if and only if they differ only on an alternating cycle bounding a face which is not a hole. We solve the following problem: Find a criterion for two perfect matchings of G to belong to the same connected component of M-g and in particular determine in which case M-g is connected. The motivation of this work is a result on tilings of Saldanha et al. (Comput. Geom. 14 (1995) 207). (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:333 / 351
页数:19
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