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.