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arXiv · 1907.01940

Smallest percolating sets in bootstrap percolation on grids

Michał Przykucki·Thomas Shelton
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Abstract

In this paper we fill in a fundamental gap in the extremal bootstrap percolation literature, by providing the first proof of the fact that for all $d \geq 1$, the size of the smallest percolating sets in $d$-neighbour bootstrap percolation on $[n]^d$, the $d$-dimensional grid of size $n$, is $n^{d-1}$. Additionally, we prove that such sets percolate in time at most $c_d n^2$, for some constant $c_d >0 $ depending on $d$ only.

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Michał Przykucki, Thomas Shelton. 2019-07-03. Smallest percolating sets in bootstrap percolation on grids. https://arxiv.org/abs/1907.01940

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