UW Combinatorics Talk

UW Combinatorics Seminar

Title: Branched Polymers and Hyperplane Arrangements

Karola Meszaros

Massachusetts Institute of Technology

October 28, 4:00pm
Padelford C-401

refreshments at 3:30pm
Pre-Seminar at 2:30pm in Padelford C-401

ABSTRACT 

We generalize the construction of branched polymers and the notion of the volume of the space of branched polymers studied by Kenyon and Winkler to any central linear hyperplane arrangement A. The volume of the resulting configuration space of branched polymers associated to the central linear hyperplane arrangement A is expressed through the characteristic polynomial of A. We relate the volume of the space of branched polymers to broken circuits and show the cohomology ring of the space of branched polymers to be the Orlik-Solomon algebra. This is joint work with Alex Postnikov.


Speaker's Contact Info: http://www-math.mit.edu/~karola/


Return to seminar home page

Sara Billey, Combinatorics Seminar, Mathematics Department, University of Washington,

Page loaded on October 21, 2009 at 08:17 AM. Copyright © 1998-99, Sara C. Billey. All rights reserved.