Student Seminar

Algebra/Number Theory

Summer 2016

Seminar Info

Meetings

Fridays at 11:00
Room: LeConte 317R

Organizer: Blake Farman

Abstracts

Blake Farman

Serre Finiteness

A brief overview of Serre finiteness in the commutative case.

Blake Farman

Noncommutative Projective Schemes

Noncommutative projective schemes were introduced by M. Artin and J. J. Zhang in their 1994 paper, Noncommutative Projective Schemes, as a generaliztion of projective schemes. In this talk, we’ll discuss the method of forming the quotient of an abelian category by an epaisse subcategory introduced by Grothendieck in his famous “Tohoku” paper, Sur quelques points d’algèbre homologique. We will use this to define the projective scheme of a noncommutative graded algebra due to Artin and Zhang, and present some results from their 1994 paper.

Cameron Atkins

Test Modules

Test modules are modules that detect finite projective dimension. We will see some examples of these modules and determine (in some cases) the set of all test modules. In addition, we will see the connection to totally reflexive modules via the canonical module.

Tyler Lewis

The Representation Type of Homogenous Rings Generated in Degree One

In this talk we will look at the 1988 paper of Eisenbud and Herzog classifying homogeneous rings generated in degree 1 of finite representation type. The proof relies on known classifications and two important lemmas. During the talk we will focus on the lemma which states that a homogeneous ring generated in degree one that has finite representation type must be "stretched," which I will define in the talk. The converse of the lemma is false and we will go over a counterexample.