|Time and place:||Mon 3:10-4:50, Wed 4:10 pm - 5:50 pm, 544 Nightingale|
|Textbook:||Various resources are given below.|
|Office and phone:||550 Nightingale Hall, (617) 373-5028.
(From the Nightingale entrance go to the 5th floor, then from the stairway/elevator head straight until you get to Jerzy Weyman's office, then my office is the one to your right.)
|Email:||r.kinser (at) neu (dot) edu|
We will cover basic theory of representations of quivers, both algebraic and geometric aspects. The algebraic side approaches representations as modules over the path algebra, utilizing techniques of homological algebra to understand the structure of representations. A primary goal would be to understand how Auslander-Reiten theory gives a combinatorial picture of the module category, especially in Dynkin types.
On the other hand, the geometric side views representations as orbits in a matrix variety that is equipped with a group action. Here the goal is to relate the geometry of orbit closures (these include, for example, varieties such as the nilpotent cone in gl(n) and Buchsbaum-Eisenbud varieties of complexes) to representation theoretic properties. We can also apply GIT to try and construct moduli spaces of certain representations.
The exact pace and special topics covered will be tailored to the interests and background of the students. I will post my personal class notes as we go, but these are not a textbook and may contain typos or vague parts that I modify in real time during class. The structure basically follows old class notes of Harm Derksen and Jerzy Weyman.
The grading will be based on a few homework sets and student presentations.
Back to Ryan's webpage.