Lipschitz Percolation
We prove the existence of a (random) Lipschitz function F : Zd−1 → Z+ such that, for every x ∈ Zd−1, the site (x, F(x)) is open in a site percolation process on Zd . The Lipschitz constant may be taken to be 1 when the parameter p of the percolation model is sufficiently close to 1. Alexander Holroyd