Graphs with complete minimal k-vertex separators

被引:0
|
作者
McKee, Terry A. [1 ]
机构
[1] Wright State Univ, Dept Math & Stat, Dayton, OH 45435 USA
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中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Dirac characterized chordal graphs by every minimal (2-)vertex separator inducing a complete subgraph. This generalizes to k-vertex separators and to a characterization of the class of {P(5), 2P(3)}-free chordal graphs. The correspondence between minimal 2-vertex separators of chordal graphs and the edges of their clique trees parallels a correspondence between minimal k-vertex separators of {P5, 2P3}-free chordal graphs and certain (k - 1)-edge substars of their clique trees.
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页码:225 / 232
页数:8
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