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arXiv 2302.00971math.PR
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一般排斥过程的耦合与吸引性

Couplings and attractiveness for general exclusion processes

Thierry Gobron, Ellen Saada

摘要:

吸引性是研究相互作用粒子系统的一个基本工具,而基本耦合构造是证明吸引性的常用途径,例如在简单的排它过程中。在这里,我们考虑一般的排斥过程,从一个被占领的网站到一个空的跳率不仅取决于跳的位置,但也可能对整个配置。这些过程特别包括由F. Spitzer in [18].对于这样的过程,我们得到的充要条件的吸引力,通过建设一个耦合的过程下,不增加的差异。我们强调的事实是,基本耦合是从来没有吸引力的这类过程,除了在简单的排斥的情况下,这里提出的耦合过程必然不同于it.We研究各种例子,我们确定的极值平移不变和不变的概率测度。

英文摘要:

Attractiveness is a fundamental tool to study interacting particle systems and the basic coupling construction is a usual route to prove this property, as for instance in the simple exclusion process. We consider here general exclusion processes where jump rates from an occupied site to an empty one depend not only on the location of the jump but also possibly on the whole configuration. These processes include in particular exclusion processes with speed change introduced by F. Spitzer in [18]. For such processes we derive necessary and sufficient conditions for attractiveness, through the construction of a coupled process under which discrepancies do not increase. We emphasize the fact that basic coupling is never attractive for this class of processes, except in the case of simple exclusion, and that the coupled processes presented here necessarily differ from it. We study various examples, for which we determine the set of extremal translation invariant and invariant probability measures.

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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