Seminars & Colloquia Calendar

Download as iCal file

Mathematical Finance and Probability Seminars

Exit problems near hyperbolic equilibria and noisy heteroclinic networks

Zsolt Pajor-Gyulai, NYU

Location:  Hill 705
Date & time: Tuesday, 24 April 2018 at 11:40AM - 12:45PM


Abstract: Motivated by a simple model of sequential decision making, we study small random perturbations of a dynamical system in a neighborhood of a heteroclinic network, that is, a collection of hyperbolic equilibrium points and corresponding connecting trajectories. Based on a detailed study of the exit problem from a neighborhood of a hyperbolic equilibrium, we show that the probability of tracing any particular path in the network decays at most polynomially in the size of the noise and establish sharp asymptotics on the time required to complete these journeys. Using these results, we describe the metastable hierarchy that emerges on polynomially long timescales.


Special Note to All Travelers

Directions: map and driving directions. If you need information on public transportation, you may want to check the New Jersey Transit page.

Unfortunately, cancellations do occur from time to time. Feel free to call our department: 848-445-6969 before embarking on your journey. Thank you.