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arXiv 1503.08310math.COcs.DMmath.PR
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正则图上具有低传播阈值的强多数引导渗流

Strong-majority bootstrap percolation on regular graphs with low dissemination threshold

Dieter Mitsche, Xavier Pérez-Giménez, Paweł Prałat

摘要:

考虑图上的强多数自助渗流模型。设r是某个正整数,p在[0,1]中。最初,每个顶点都以概率p活跃,独立于所有其他顶点。然后,在该过程的每一步,如果至少(deg(v)+r)/2个相邻顶点是活动的,则度为deg(v)的每个顶点v变为活动的。给定任意小的p>0和任意整数r,我们构造了一族d=d(p,r)-正则图,使得所有的顶点都有很高的概率最后成为活跃的.特别是,r=1的情况回答了一个问题,并反驳了Rapaport,Suchan,Todinca和Verstraete的猜想(Rummica,2011)。

英文摘要:

Consider the following model of strong-majority bootstrap percolation on a graph. Let r be some positive integer, and p in [0,1]. Initially, every vertex is active with probability p, independently from all other vertices. Then, at every step of the process, each vertex v of degree deg(v) becomes active if at least (deg(v)+r)/2 of its neighbours are active. Given any arbitrarily small p>0 and any integer r, we construct a family of d=d(p,r)-regular graphs such that with high probability all vertices become active in the end. In particular, the case r=1 answers a question and disproves a conjecture of Rapaport, Suchan, Todinca, and Verstraete (Algorithmica, 2011).

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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