Questions tagged [percolation]

Percolation theory describes the behavior of connected clusters in a random graph.

Percolation theory describes the behavior of connected clusters in a random graph.

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percolation - number of cycles around the origin

I try to study Percolation Theory by "A mini course on percolation theory" of Jeffrey E. Steif. I am very curios about Exercise 2.4. Show that the number of cycles around the origin of length n is at most $n4(3^{n−1})$. I need to this on lattice…
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Percolation and hopping, has it been described?

This ultimately relates to a physics question, but It wasn't getting any answers, on physics.stackexchange. As it crosses the boundaries of each subject I was advised to post it here: Has a system where conducting sites can percolate by hopping…
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Generalized percolation problem

Consider a simple site percolation problem on, for example, a 2D square lattice. Each vertex is randomly either there or not with some probability. If two neighbouring vertices are present, then the edge between them is there too. If any connected…
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Largest cluster sizes in sub-critical percolation

Consider a sub-critical site percolation problem on a square lattice with $N$ sites. In the limit of large $N$, the (ensemble averaged) size $\mu$ of the largest cluster scales as (see here) $$ \mu \sim s(p) \log N $$ What is the dependence on…
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Probability on Graphs. Percolation.

I am studying the book Probability on Graphs by Grimett. Grimett tells us that $\mu_1 \leq_{st} \mu_2$ if and only if $\mu_1(f)\leq\mu_2(f)$ for all increasing functions $f:\Omega\to \mathbb{R}$. I want to proof this. I tried to use the standard…