2025/12/5
Amir Mafi

Amir Mafi

Academic rank: Professor
ORCID:
Education: PhD.
H-Index:
Faculty: Faculty of Science
ScholarId:
E-mail: a.mafi [at] uok.ac.ir
ScopusId: View
Phone: 33624133
ResearchGate:

Research

Title
On the cofiniteness properties of certain general local cohomology modules
Type
JournalPaper
Keywords
General local cohomology modules_Cofinite modules
Year
2008
Journal To appear in Acta Sci. Math
DOI
Researchers Amir Mafi ، saremi hero

Abstract

Let R be a commutative Noetherian ring,  a system of ideals of R, and M a finitely generated R-module. Suppose that a 2  and t is a non-negative integer. It is shown that if Exti R(R/a,Hj (M)) is finitely generated for all i and all j < t, then Exti R(R/a,Ht(M)) is finitely generated for i = 0, 1. In particular, if R is a local ring of dimension at most 2, then Exti R(R/a,Hj (M)) is finitely generated for all i, j.