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arXiv 2101.00550cond-mat.dis-nnmath.PR
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渗漏和大流行病

Percolation and the pandemic

Robert M. Ziff

摘要:

本文旨在纪念迪特里希·斯托弗,他是渗流理论的先驱,并将其应用于社会问题,如流行病学。流行病是一个失控的渗透过程,也就是说,超过了临界转变阈值$p_c$。在这里,我们讨论的阈值是如何相关的邻居$R_0$的基本传染性,树(贝特格),树与三角形集团,并在非平面晶格渗流与扩展范围的连接。它示出了如何有一个较小的范围内的接触增加$R_0$的临界值以上的值$R_{0,c}=1$适当的树,无限范围的系统或一个大的完全连接的图形。

英文摘要:

This paper is dedicated to the memory of Dietrich Stauffer, who was a pioneer in percolation theory and applications of it to problems of society, such as epidemiology. An epidemic is a percolation process gone out of control, that is, going beyond the critical transition threshold $p_c$. Here we discuss how the threshold is related to the basic infectivity of neighbors $R_0$, for trees (Bethe lattice), trees with triangular cliques, and in non-planar lattice percolation with extended-range connectivity. It is shown how having a smaller range of contacts increases the critical value of $R_0$ above the value $R_{0,c}=1$ appropriate for a tree, an infinite-range system or a large completely connected graph.

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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