Event № 1614
Event № 1614
TE
Seminar in Probability and Stochastic Processes
- Aser Cortines (Technion)
10/11/2015, Tuesday, 11:30
Type: Seminar
Name: Seminar in Probability and Stochastic Processes
Title: Finite-size corrections to the speed of a branching-selection process
Speaker: Aser Cortines (Technion)
Place:
861 Meyer Building (Hashmal), Technion
Abstract:
We focus on a model in front propagation introduced by E. Brunet and B. Derrida [2004], in which $N$ of particles evolve on the real line. The dynamics is determined by a branching-selection mechanism, so the particles remain grouped and move like a travelling front. The model can be seen as a directed polymer in random medium or as the evolution of a population subjected to mutation and selection. We focus on the case where the noise lies in the max-domain of attraction of the Weibull extreme value distribution and show that under mild conditions the correction to the speed has universal features depending on the tail probabilities.
SubmittedBy:
Oren Louidor , oren.louidor@gmail.com
EventLink: Event № 1614