Mathematics – Probability
Scientific paper
2010-07-21
Mathematics
Probability
Scientific paper
We prove several facts concerning Lipschitz percolation, including the following. The critical probability p_L for the existence of an open Lipschitz surface in site percolation on Z^d with d\ge 2 satisfies the improved bound p_L \le 1-1/[8(d-1)]. Whenever p > p_L, the height of the lowest Lipschitz surface above the origin has an exponentially decaying tail. The lowest surface is dominated stochastically by the boundary of a union of certain independent, identically distributed random subsets of Z^d. As a consequence, for p sufficiently close to 1, the connected regions of Z^{d-1} above which the surface has height 2 or more exhibit stretched-exponential tail behaviour.
Grimmett Geoffrey R.
Holroyd Alexander E.
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