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The Arboreal Gas

VIENNA PROBABILITY SEMINAR

Date
Tuesday, June 1, 2021 16:30 - 17:15
Speaker
Tyler Helmuth (Durham University)
Location
Online via Zoom
Series
Seminar/Talk
Tags
Mathematics and CS Seminar, mathematical_seminar_ics
Host
M. Beiglböck, N. Berestycki, L. Erdös, J. Maas, F. Toninelli
Contact

In Bernoulli bond percolation each edge of a graph is declared open with probability p, and closed otherwise, and one typically asks questions about the random subgraph of open edges. The arboreal gas is the probability measure obtained by conditioning on the event that the percolation subgraph is a forest, i.e., contains no cycles.

What are the percolative properties of these random forests? Do they contain giant trees? I will discuss what is known and conjectured, including a surprising connection with reinforced random walks.


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