Mark Kac Seminar
Location: Utrecht, KNG80, room 130
11:1513:00 
speaker: Petter Brändén (KTH Stockholm) 
title: Correlation inequalities and the geometry of multivariate polynomials 
The main
topic of the talk is zeros of partition functions and correlation
inequalities. We prove that certain conditions on the zeroset of the
partition function entail negative association for the corresponding
measure. A consequence is that the symmetric exclusion process with product
initial distribution is negatively associated at positive times, as
conjectured by Liggett and Pemantle. 

14:1516:00 
speaker: Andras Balint (VU Amsterdam) 
title: The high temperature Ising model on the triangular lattice is a critical percolation model 
The Ising model at inverse
temperature \beta and zero external field can be obtained via the
FortuinKasteleyn (FK) randomcluster model with q=2 and density of
open edges p=1e^{\beta} by assigning spin +1 or 1 to each vertex
in such a way that 
Mark Kac Seminar 20082009 

last updated: 29 sep 2008 by Markus 