Rice University Math Department Calendar

    February 2009            March 2009             April 2009     
 Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
  1  2  3  4  5  6  7    1  2  3  4  5  6  7             1  2  3  4
  8  9 10 11 12 13 14    8  9 10 11 12 13 14    5  6  7  8  9 10 11
 15 16 17 18 19 20 21   15 16 17 18 19 20 21   12 13 14 15 16 17 18
 22 23 24 25 26 27 28   22 23 24 25 26 27 28   19 20 21 22 23 24 25
                        29 30 31               26 27 28 29 30

4:00 pm Wednesday, March 25, 2009
Geometry-Analysis Seminar: Traveling Fronts in Disordered Media
by Andrej Zlatoš (University of Chicago) in HB 227

We study generalized traveling front solutions of reaction-diffusion equations modeling flame propagation in combustible media. Although the case of periodic media has been studied extensively, until very recently little has been known for general disordered media. In this talk we will address questions of existence, uniqueness, and stability of traveling fronts in this framework.Host Department: Rice University-Mathematics
Submitted by damanik@rice.edu

4:00 pm Friday, March 27, 2009
Geometry-Analysis Seminar: Stochastic Point Processes With Pure Point Spectrum
by Daniel Lenz (Friedrich-Schiller-Universität Jena) in HB 227

We study ergodic uniformly discrete point processes with pure point spectrum. A part of the point spectrum is known as Bragg peaks. It can (in principle) be measured in diffraction experiments. We show that such point processes are determinded by finitely many moments whenever the group of eigenvalues is finitely generated over the set of Bragg peaks. In particular, these processes are determined by their first three moments if the set of Bragg peaks agrees with the point spectrum. (The talk is based on joint work with Robert V. Moody)Host Department: Rice University-Mathematics
Submitted by damanik@rice.edu