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arXiv 0710.3697math.PRq-bio.PE
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将分支过程耦合到infinite dimensional传染病过程

Coupling a branching process to an infinite dimensional epidemic process

A. D. Barbour

摘要:

分支过程近似的初始阶段的流行病过程已被用于自20世纪50年代以来,作为一种技术,提供随机对应的确定性流行病阈值定理。描述近似的一种方法是在同一个概率空间上构造分支过程和流行过程,使它们的路径尽可能长地重合。本文证明了在一个马氏寄生虫感染模型中,直到发生o(N^{2/3})次感染(其中N表示宿主总数)时,可以以渐近高概率实现重合.

英文摘要:

Branching process approximation to the initial stages of an epidemic process has been used since the 1950's as a technique for providing stochastic counterparts to deterministic epidemic threshold theorems. One way of describing the approximation is to construct both branching and epidemic processes on the same probability space, in such a way that their paths coincide for as long as possible. In this paper, it is shown, in the context of a Markovian model of parasitic infection, that coincidence can be achieved with asymptotically high probability until o(N^{2/3}) infections have occurred, where N denotes the total number of hosts.

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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