Home /  Fellowship of the Ring, National Seminar: Numbers of Associated Primes of Powers of Ideals

Seminar

Fellowship of the Ring, National Seminar: Numbers of Associated Primes of Powers of Ideals May 06, 2021 (01:30 PM PDT - 03:00 PM PDT)
Parent Program: --
Location: SLMath: Online/Virtual
Speaker(s) Irena Swanson (Purdue University)
Description

To attend this seminar, you must register in advance, by clicking HERE.

Keywords and Mathematics Subject Classification (MSC)
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC
Video
No Video Uploaded
Abstract/Media

To attend this seminar, you must register in advance, by clicking HERE.

 

This talk is about associated primes of powers of ideals in Noetherian commutative rings.  By a result of Brodmann, for any ideal $I$ in a ring $R$, the set of associated primes of $I^n$ stabilizes for large $n$.  In general, the number of associated primes can go up or down as $n$ increases.  This talk is about sequences $\{a_n\}$ for which there exists an ideal $I$ in a Noetherian commutative ring $R$ such that the number of associated primes of $R/I^n$ is $a_n$.  A family of examples shows that $I$ may be prime and the number of associated primes of $I^2$ need not be polynomial in the dimension of the ring.



This is a report on four separate projects with Sarah Weinstein, Jesse Kim, Robert Walker, and ongoing work with Roswitha Rissner.

Asset no preview Notes 1.3 MB application/pdf
No Video Files Uploaded