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arXiv 2009.07682math.PR
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强强化条件下规则树上的WARM渗流

WARM percolation on a regular tree in the strong reinforcement regime

Christian Hirsch, Mark Holmes, Victor Kleptsyn

摘要:

我们考虑一类强化过程,称为WARMs,在树图。这些过程涉及一个参数$α$,它控制的强度的钢筋,和一个集合的泊松过程索引的顶点的图形。最近已经证明,对于任何固定的有界度图的泊松发射率是一致有界以上,在非常强的加强制度($α\gg 1$足够大,取决于最大程度),一组边“生存”(即加强无限经常的过程)只有有限的连通分量。本论文致力于建设一个例子在相反的方向,即,与一组幸存的边缘有无限的连通组件。也就是说,我们发现,对于每个固定的$α>1$可以找到一个经常的有根树和射击率,从上面是一致有界的,几乎肯定有无限的组件。加入这样的例子,我们发现一个图(与无界度)上的任何$α>1$几乎肯定有无限连通组件的生存边缘。

英文摘要:

We consider a class of reinforcement processes, called WARMs, on tree graphs. These processes involve a parameter $α$ which governs the strength of the reinforcement, and a collection of Poisson processes indexed by the vertices of the graph. It has recently been proved that for any fixed bounded degree graph with Poisson firing rates that are uniformly bounded above, in the very strong reinforcement regime ($α\gg 1$ sufficiently large depending on the maximal degree), the set of edges that "survive" (i.e. that are reinforced infinitely often by the process) has only finite connected components. The present paper is devoted to the construction of an example in the opposite direction, that is, with the set of surviving edges having infinite connected components. Namely, we show that for each fixed $α>1$ one can find a regular rooted tree and firing rates that are uniformly bounded from above, for which there are infinite components almost surely. Joining such examples, we find a graph (with unbounded degrees) on which for any $α>1$ almost surely there are infinite connected components of surviving edges.

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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