Characterization of Weak $I$ Sequences
Received:June 06, 2005  Revised:November 25, 2005
Key Words: Noetherian local ring   Ext functor.  
Fund Project:Youth Fund of Shanghai Fisheries University.
Author NameAffiliation
WANG Chun-hua Department of Applied Mathematics, Shanghai Fisheries University, Shanghai 200090, China 
SONG Chuan-ning Department of Mathematicas, Shanghai Normal University, Shanghai 200234, China 
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Abstract:
      In [5], Zhou defined the notion of weak $I$ sequences and characterized such sequences by Koszul cohomology and local cohomology methods. The aim of this paper is to characterize weak $I$ sequences by means of Ext functor.
Citation:
DOI:10.3770/j.issn:1000-341X.2007.03.005
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