H. Roshan-Shekalgourabi

collaborators

3 papers

math.AC2018

Hartshorne's questions and weakly cofiniteness

Hajar Roshan-Shekalgourabi, Marzieh Hatamkhani

Let $R$ be a commutative Noetherian ring, $\fa$ be an ideal of $R$ and $M$ be an $R$ -module. The main purpose of this paper is to answer the Hartshorn's questions in the class of w…

math.AC2018

Cominimaxness with respect to ideals of dimension one

Hajar Roshan-Shekalgourabi

Let $R$ be a commutative Noetherian ring, $\fa$ be an ideal of $R$ and $M$ be an $R$ -module. It is shown that if $\Ext^i_R(R/\fa,M)$ is minimax for all $i \leq dim M$ , then the $R$ …

math.AC2013

Prime Submodules And A Sheaf On The Prime Spectra Of Modules

D. Hassanzadeh-Lelekaami, H. Roshan-Shekalgourabi

We define and investigate a sheaf of modules on the prime spectra of modules and it is shown that there is an isomorphism between the sections of this sheaf and the ideal transform…