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APRG Seminar

Title: Geometry of random geodesics - 3
Speaker: Arjun Krishnan (University of Rochester)
Date: 22 June 2022
Time: 2:00-3:40 pm (with a 10 minute break 2:45-2:55)
Venue: LH-1, Mathematics Department (and Microsoft Teams)

First-passage percolation is a canonical example of a random metric on the lattice $\mathbb{Z}^d$. It is also conjecturally in the KPZ universality class for growth models. This is a three-part talk, in which we will cover the following topics:

  1. Overview of geodesics in first-passage percolation; their asymptotic geometry and KPZ behavior; bigeodesics and their connections to the random Ising model.

  2. Busemann functions, their construction and their properties; encoding geodesic behavior using Busemann functions.

  3. Geodesic behavior from an abstract, ergodic theoretic viewpoint; geodesics as the flow lines of a random vector field.

Contact: +91 (80) 2293 2711, +91 (80) 2293 2265 ;     E-mail: chair.math[at]iisc[dot]ac[dot]in
Last updated: 19 Jul 2024