arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.00628math.PR
收藏

长程相依多稳定过程的泛函非中心极限定理

A functional non-central limit theorem for multiple-stable processes with long-range dependence

Shuyang Bai, Takashi Owada, Yizao Wang

摘要:

对一类既具有重尾又具有长程相关的平稳序列的部分和过程建立了泛函极限定理。平稳序列是由多重重尾边缘分布的随机积分构成的。此外,多重随机积分是建立在一个大的动力系统,遍历和保守的家庭,导致长期依赖现象的模型。这些极限构成了一类新的具有平稳增量的自相似过程。它们由多个稳定积分表示,其中被积函数涉及独立平稳稳定再生集相交的局部时间。计算了局部时的联合矩,这是证明的关键,也是独立的兴趣。

英文摘要:

A functional limit theorem is established for the partial-sum process of a class of stationary sequences which exhibit both heavy tails and long-range dependence. The stationary sequence is constructed using multiple stochastic integrals with heavy-tailed marginal distribution. Furthermore, the multiple stochastic integrals are built upon a large family of dynamical systems that are ergodic and conservative, leading to the long-range dependence phenomenon of the model. The limits constitute a new class of self-similar processes with stationary increments. They are represented by multiple stable integrals, where the integrands involve the local times of intersections of independent stationary stable regenerative sets. The joint moments of the local times are computed, which play the key in the proof and are also of independent interest.

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。

↑