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arXiv 0801.2753math.PR
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稳定自相似平稳增量过程的离散逼近

Discrete approximation of a stable self-similar stationary increments process

Clément Dombry, Nadine Guillotin-Plantard

摘要:

本文的目的是给出一类稳定自相似平稳增量过程的离散逼近结果。这些过程的性质进行了深入的研究,但很少有人知道的背景下,这样的过程可以出现。据我们所知,离散和收敛定理只适用于稳定的Lévy运动和分数布朗运动的情况。本文在这方面给出了新的结果。我们的主要结果是收敛的随机奖励模式,这是首次推出的科恩和Samorodnitsky,我们认为在一个更一般的设置。强的关系与Kesten和斯皮策的随机游动在随机场景的证据。最后,我们研究了极限过程的一些路径性质。

英文摘要:

The aim of this paper is to present a result of discrete approximation of some class of stable self-similar stationary increments processes. The properties of such processes were intensively investigated, but little is known on the context in which such processes can arise. To our knowledge, discretisation and convergence theorems are available only in the case of stable Lévy motions and fractional Brownian motions. This paper yields new results in this direction. Our main result is the convergence of the random rewards schema, which was firstly introduced by Cohen and Samorodnitsky, and that we consider in a more general setting. Strong relationships with Kesten and Spitzer's random walk in random sceneries are evidenced. Finally, we study some path properties of the limit process.

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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