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Amir Mafi

Amir Mafi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 14627657300
Faculty: Faculty of Science
Address:
Phone: 33624133

Research

Title
A generalization of the finiteness problem in local cohomology modules
Type
JournalPaper
Keywords
Local cohomology modules_ cofiniteness
Year
2009
Journal PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-MATHEMATICAL SCIENCES
DOI
Researchers Amir Mafi

Abstract

Let a be an ideal of a commutative Noetherian ring R with non-zero identity and let N be a weakly Laskerian R-module andM be a finitely generated R-module. Let t be a non-negative integer. It is shown that ifHi a(N) is a weakly Laskerian R-module for all i < t, then HomR(R/a,Hta (M,N)) is weakly Laskerian R-module. Also, we prove that Exti R(R/a,Hta (N)) is weakly Laskerian R-module for all i = 0, 1. In particular, if SuppR(Hi a(N)) is a finite set for all i < t, then Exti R(R/a,Hta (N)) is weakly Laskerian R-module for all i = 0, 1.