Regularity of the time constant for a supercritical Bernoulli percolation

Abstract : We consider an i.i.d. supercritical bond percolation on Z^d , every edge is open with a probability p > p_c (d), where p_c (d) denotes the critical parameter for this percolation. We know that there exists almost surely a unique infinite open cluster C_p [11]. We are interested in the regularity properties of the chemical distance for supercritical Bernoulli percolation. The chemical distance between two points x, y ∈ C_p corresponds to the length of the shortest path in C_p joining the two points. The chemical distance between 0 and nx grows asymptotically like nμ_p (x). We aim to study the regularity properties of the map p → μ_p in the supercritical regime. This may be seen as a special case of first passage percolation where the distribution of the passage time is G_p = pδ_1 + (1 − p)δ_∞ , p > p c (d). It is already known that the map p → μ_p is continuous (see [10]).
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https://hal.archives-ouvertes.fr/hal-01721917
Contributor : Barbara Dembin <>
Submitted on : Monday, December 24, 2018 - 9:58:40 AM
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• HAL Id : hal-01721917, version 2
• ARXIV : 1803.03141

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Barbara Dembin. Regularity of the time constant for a supercritical Bernoulli percolation. 2018. ⟨hal-01721917v2⟩

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