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arXiv 0908.4125math.PR
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楔形体中的接触过程

Contact process in a wedge

J. Theodore Cox, Nevena Maric, Rinaldo B. Schinazi

摘要:

我们证明了超临界一维接触过程在一定的楔形时空区域中存在,并且当它存在时,它与从它的上不变测度开始的无限制接触过程耦合.作为一个应用,我们证明了在Durrett和Swindle(1991)提出的最近邻"草-丛-树“演替模型中,弱共存是可能的.

英文摘要:

We prove that the supercritical one-dimensional contact process survives in certain wedge-like space-time regions, and that when it survives it couples with the unrestricted contact process started from its upper invariant measure. As an application we show that a type of weak coexistence is possible in the nearest-neighbor ``grass-bushes-trees'' successional model introduced in Durrett and Swindle (1991).

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