李为民.图的正则强自态的逆(英文)[J].数学研究及应用,1998,18(4):529~534 |
图的正则强自态的逆(英文) |
Inverses of Regular Strong Endomorphisms of Graphs |
投稿时间:1996-04-04 修订日期:1998-03-01 |
DOI:10.3770/j.issn:1000-341X.1998.04.009 |
中文关键词: |
英文关键词:strong endomorphism (commuting) pseudo inverse monoid graph. |
基金项目: |
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中文摘要: |
本文从组合角度明确刻画了图的完全正则强自同态的交换伪逆,同时给出它们的计数公式. |
英文摘要: |
In this paper we explicitly describe all the commuting pseudo inverses of a completely regular strong endomorphism of a graph from a viewpoint of combinatorics. The number of them is also given. In addition, a strong endomorphism of a graph, whose commuting pseudo inverse set coincides with its pseudo inverse set, is identified. |
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