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arXiv 1002.0610math.PRmath-phmath.MP
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Gibbs随机图

Gibbs Random Graphs

Pablo A. Ferrari, Eugene A. Pechersky, Valentin V. Sisko, Anatoly A. Yambartsev

摘要:

考虑$R^d$的离散局部有限子集$Γ$和完全图$(Γ,E)$,其顶点为$Γ$,边为$E$。我们考虑顶点为$Γ$,边为$E'\subset E$的子图集合上的Gibbs测度.吉布斯相互作用作用在具有公共顶点的开边之间起作用。我们研究了图系综的吉布斯分布的渗流性质。主要结果涉及两种情况下开边的渗流性质:(a)当$Γ$是齐次泊松过程的样本时;(b)对于连通度指数衰减的固定$Γ$.

英文摘要:

Consider a discrete locally finite subset $Γ$ of $R^d$ and the complete graph $(Γ,E)$, with vertices $Γ$ and edges $E$. We consider Gibbs measures on the set of sub-graphs with vertices $Γ$ and edges $E'\subset E$. The Gibbs interaction acts between open edges having a vertex in common. We study percolation properties of the Gibbs distribution of the graph ensemble. The main results concern percolation properties of the open edges in two cases: (a) when the $Γ$ is a sample from homogeneous Poisson process and (b) for a fixed $Γ$ with exponential decay of connectivity.

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