On the finiteness properties of UiAssRExtrn (R/αi,M)

被引:5
作者
Khashyarmanesh, K
机构
[1] Mashhad Univ, Dept Math, Mashhad, Iran
[2] Inst Studies Theoret Phys & Math, Sch Math, Tehran, Iran
关键词
filter regular sequences; generalized regular sequences; local cohomology modules; support of local cohomology modules;
D O I
10.1080/00927870500388091
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let alpha be an ideal of a commutative Noetherian local ring R and let M be a finitely generated R-module. Let n be a positive integer such that the support of local cohomology module H-alpha(i)(M) is finite for all i < n. In this note we show that the set ((i is an element of N)Ass(R)Ext(R)(n)(R/alpha(i),M))boolean AND{p is an element of Spec(R):dim R/p > 1} is finite. Also we determine precisely the associated prime ideals p of H-alpha(n)(M) satisfying dimR/p > 1.
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页码:779 / 784
页数:6
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