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超环面图上的约束数

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Indexed by:期刊论文

Date of Publication:2009-01-01

Journal:中国科学技术大学学报

Included Journals:PKU、ISTIC、CSCD

Volume:39

Issue:3

Page Number:225-228

ISSN No.:0253-2778

Key Words:约束数;控制数;交叉数;平面图

Abstract:非空图G的约束数b(G)是指使得图G的控制数γ(G)增大而删除的最少的边数.[Fischermann M, Rautenbach D, Volkmann L. Remarks on the bondage number of planar graphs. Discrete Math,2003,260:57-67\]已经证明,对于一个围长为g(G)的平面图G,如果g(G)≥4则b(G)≤6,如果g(G)≥5则b(G)≤5,如果g(G)≥6则b(G)≤4,如果g(G)≥8则b(G)≤3.我们把这个结果推广到连通的超环面图中.

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