Institute of Mathematics


Modul:   MAT971  Stochastische Prozesse

Harmonic functions with gradient converging to zero at infinity

Talk by Prof. Dr. Gady Kozma

Date: 06.04.22  Time: 17.15 - 18.15  Room: Y27H12

For which finitely generated groups does there exist a non-constant (discrete) harmonic function whose gradient converges to zero at infinity? We will see a number of examples, including a connection to an open problem on two dimensional simple random walk. Joint work with Gidi Amir and Maria Gerasimova.