The Poincaré profile of a graph or group
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Benjamini, Schramm and Timar introduced the notion of “separation profile” for a graph or finitely generated group. I will discuss a family of invariants that generalise this idea, examples of the values obtained and applications to non-embedding results. Joint work with David Hume and Romain Tessera.
This talk is part of the Isaac Newton Institute Seminar Series series.
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