Unretractivity and End-Regularity of a Graph
Received:May 31, 1999  
Key Words: endomorphism monoid   regularity   unretractivity.  
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Author NameAffiliation
LI Wei-min Dept. of Math.
Shanghai Jiaotong University
Shanghai
China 
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Abstract:
      In this paper, a relationship among unretractivity, E-H-unretractivity andend-regularity of a graph is described.
Citation:
DOI:10.3770/j.issn:1000-341X.2002.02.004
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