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arXiv 1107.2280math.PR
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整数格锥型子图上首次通过渗流的渐近收敛性

Convergence towards an asymptotic shape in first-passage percolation on cone-like subgraphs of the integer lattice

Daniel Ahlberg

摘要:

在整数格上的首次通过渗流中,形状定理为在给定时间内从原点可到达的一组站点的收敛提供了精确的条件,一旦重新缩放,就可以达到紧凑和凸的极限形状。在这里,我们解决收敛到一个渐近形状的锥状子图的$\Z^d$格,其中$d\ge2$。特别是,我们确定的渐近形状与这些图的渐近形状的晶格的限制。除了提供的充要条件$L^p$ -和几乎必然收敛对这个形状,我们也调查更强的概念,如全收敛和稳定的动态演变的环境。

英文摘要:

In first-passage percolation on the integer lattice, the Shape Theorem provides precise conditions for convergence of the set of sites reachable within a given time from the origin, once rescaled, to a compact and convex limiting shape. Here, we address convergence towards an asymptotic shape for cone-like subgraphs of the $\Z^d$ lattice, where $d\ge2$. In particular, we identify the asymptotic shapes associated to these graphs as restrictions of the asymptotic shape of the lattice. Apart from providing necessary and sufficient conditions for $L^p$- and almost sure convergence towards this shape, we investigate also stronger notions such as complete convergence and stability with respect to a dynamically evolving environment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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