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Amir Mafi

Amir Mafi

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

Research

Title
A Note on Stability Properties of Powers of Polymatroidal Ideals
Type
JournalPaper
Keywords
Polymatroidal ideal‎, ‎depth and associated primes stability number
Year
2022
Journal Bulletin of the Iranian Mathematical Society
DOI
Researchers Amir Mafi ، Dler Naderi

Abstract

‎Let $I$ be a matroidal ideal of degree $d$ of a polynomial ring $R=K[x_1,...,x_n]$‎, ‎where $K$ is a field‎. ‎Let $\astab(I)$ and $\dstab(I)$ be the smallest integers $m$ and $n$‎, ‎for which $\Ass(I^m)$ and $\depth(I^n)$ stabilize‎, ‎respectively‎. ‎In this paper‎, ‎we show that $\astab(I)=1$ if and only if $\dstab(I)=1$‎. ‎Moreover‎, ‎we prove that if $d=3$‎, ‎then $\astab(I)=\dstab(I)$‎. ‎Furthermore‎, ‎we show that if $I$ is an almost square-free Veronese type ideal of degree $d$‎, ‎then $\astab(I)=\dstab(I)=\lceil\frac{n-1}{n-d}\rceil$‎.