Hexagonal systems with forcing single edges

被引：32
|
作者：
Li, XL
机构：
[1] Department of Applied Mathematics, NW Polytechnical University, Xi'an
来源：
DISCRETE APPLIED MATHEMATICS | 1997年 / 72卷 / 03期
基金：
中国国家自然科学基金;
关键词：
hexagonal system; matching; forcing edge;
D O I：
10.1016/0166-218X(95)00116-9
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper, we introduce the concept of a forcing single edge in a hexagonal system H, which is an edge of H belonging to all but one perfect matching of H. We completely determine all the hexagonal systems with a forcing single edge. A generating function for the number of such systems is also given.
引用
收藏
页码：295 / 301
页数：7
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