Sharpness of the Phase Transition for the Orthant Model
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AbstractThe orthant model is a directed percolation model on $\mathbb {Z}^{d}$ ℤ d , in which all clusters are infinite. We prove a sharp threshold result for this model: if p is larger than the critical value above which the cluster of 0 is contained in a cone, then the shift from 0 that is required to contain the cluster of 0 in that cone is exponentially small. As a consequence, above this critical threshold, a shape theorem holds for the cluster of 0, as well as ballisticity of the random walk on this cluster.
1997 ◽
Vol 07
(04)
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pp. 917-922
2005 ◽
Vol 136
(2)
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pp. 203-233
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2013 ◽
Vol 28
(28)
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pp. 1350140
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1982 ◽
Vol 48
(12)
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pp. 775-778
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2014 ◽
Vol 51
(4)
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pp. 1065-1080
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