Discrete Riemann mapping and the Poisson boundary
- π€ Speaker: Agelos Georgakopoulos (University of Warwick)
- π Date & Time: Thursday 17 October 2013, 14:30 - 15:30
- π Venue: MR12
Abstract
Answering a question of Benjamini & Schramm, we show that the Poisson boundary of any planar, uniquely absorbing (e.g. one-ended and transient) graph with bounded degrees can be realised geometrically as a circle, namely as the boundary of a tiling of a cylinder by squares. For this, we introduce a general criterion for identifying the Poisson boundary of a stochastic process that might have further applications.
The talk will be self-contained, assuming no prior knowledge of the mentioned terminology, and will contain many pictures.
Series This talk is part of the Combinatorics Seminar series.
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Agelos Georgakopoulos (University of Warwick)
Thursday 17 October 2013, 14:30-15:30