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On closures verifying that the interior of a closed element is closed

 

作者: Emmanuelle Garel,   Jean-Pierre Olivier,  

 

期刊: Communications in Algebra  （Taylor Available online 1995）
卷期: Volume 23, issue 10  

页码: 3715-3728

 

ISSN:0092-7872

 

年代: 1995

 

DOI:10.1080/00927879508825428

 

出版商: Marcel Dekker, Inc.

 

数据来源: Taylor

 

摘要:

We give significant improvements to the Graham, Knuth & Motzkin result: ifRis any binary relation,R+c+c+=R+c+c(whereP+denotes the transitive closure of the binary relationP, andPcits Boolean complement)

 

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