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arXiv 1504.06211math.PR
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无限布朗粒子系统的构造

A construction of infinite Brownian particle systems

Mykhaylo Shkolnikov

摘要:

本文在一个大类中确定了无穷布朗粒子系统的拟定态初始条件族,并从这样的初始条件出发给出了粒子系统本身的构造.落入我们的框架的粒子系统的例子包括布朗版本的TASEP类过程,如q-TASEP过程的扩散标度极限。在这种情况下,连续粒子之间的间距形成无限维版本的软反射布朗运动最近推出的有限维设置由奥康奈尔和奥特曼和独立的兴趣。主要结果的证明是基于所涉及的粒子系统所满足的交织关系,其可以被视为适当广义伯克定理的无限维类似物。

英文摘要:

The paper identifies families of quasi-stationary initial conditions for infinite Brownian particle systems within a large class and provides a construction of the particle systems themselves started from such initial conditions. Examples of particle systems falling into our framework include Brownian versions of TASEP-like processes such as the diffusive scaling limit of the q-TASEP process. In this context the spacings between consecutive particles form infinite-dimensional versions of the softly reflected Brownian motions recently introduced in the finite-dimensional setting by O'Connell and Ortmann and are of independent interest. The proof of the main result is based on intertwining relations satisfied by the particle systems involved which can be regarded as infinite-dimensional analogues of the suitably generalized Burke's Theorem.

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