Coexistence in two-type first-passage percolation models

Details Coexistence in two-type first-passage percolation models Coexistence in two-type first-passage percolation models

2003-12-18

arxiv.org/abs/math/0312369v1

Annals of Applied Probability 15, No. 1A (2005) pages 298-330

Mathematics

Probability

submitted 18 dec 2003

Scientific paper

We study the problem of coexistence in a two-type competition model governed by first-passage percolation on $\Zd$ or on the infinite cluster in Bernoulli percolation. Actually, we prove for a large class of ergodic stationary passage times that for distinct points $x,y\in\Zd$, there is a strictly positive probability that $\{z\in\Zd;d(y,z)d(x,z)\}$ are both infinite sets. We also show that there is a strictly positive probability that the graph of time-minimizing path from the origin in first-passage percolation has at least two topological ends. This generalizes results obtained by H{\"a}ggstr{\"o}m and Pemantle for independent exponential times on the square lattice.

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