Panagiotis Spanos


Spread out percolation in 2-step nilpotent groups

Combinatorics Seminar

26th April 2022, 11:00 am – 12:00 pm
Fry Building, 2.04

A simple case of a spread-out percolation on Z^d could be described as follows: for each two points at distance at most $r>0$, we connect them with probability p. A result by Penrose states that as $r/rightarrow /infty$ the critical value of the average degree, for the existence of an infinite component, tends to 1. In this talk we present a generalisation of this model on a finitely generated 2-step nilpotent group. We show that for a specific generator set, the same result applies for its corresponding Cayley graph.

Organisers: David Ellis, Tom Johnston

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