November 24, 2024
Najmeh Dehghani

Najmeh Dehghani

Academic Rank: Assistant professor
Address:
Degree: Ph.D in Mathematics
Phone: 0917 737 2249
Faculty: Faculty of Intelligent Systems and Data Science

Research

Title When Essential Extensions of Finitely Generated Modules are Finitely Generated
Type Article
Keywords
Journal COMMUNICATIONS IN ALGEBRA
DOI
Researchers Najmeh Dehghani (First researcher) ,

Abstract

For certain classes C of R-modules, including singular modules or modules with locally Krull dimensions, it is investigated when every module in C with a finitely generated essential submodule is finitely generated. In case C = Mod-R, this means E(M)/M is Noetherian for any finitely generated module M. Rings R with latter property are studied and shown that they form a class Q properly between the class of pure semisimple rings and the class of certain max rings. Duo rings in Q are precisely Artinian rings. If R is a quasi continuous ring in Q then R\simeq A\oplus T , where A is a semisimple Artinian ring and T\in Q with Z(T) is an essential submodule of T.