arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1906.05037math.PRmath-phmath.MP
收藏

$\mathbb{Z}^d$上的激活随机游动

Activated Random Walks on $\mathbb{Z}^d$

Leonardo T. Rolla

摘要:

一些随机系统特别有趣,因为它们在没有参数微调的情况下表现出临界行为,这种现象称为自组织临界性。在驱动耗散定态的背景下,一个主要的模型是激活随机游动。保守动力学固有的长程效应和缺乏简单的代数结构导致标准工具和技术失效。这使得这个模型的数学研究非常具有挑战性。然而,在过去的十年里,随着工具和方法框架的发展,已经取得了一些令人兴奋的进展,最终变得更加结构化。在这些课堂讲稿中,我们介绍了现有的结果,并再现了迄今为止发展的技术。

英文摘要:

Some stochastic systems are particularly interesting as they exhibit critical behavior without fine-tuning of a parameter, a phenomenon called self-organized criticality. In the context of driven-dissipative steady states, one of the main models is that of Activated Random Walks. Long-range effects intrinsic to the conservative dynamics and lack of a simple algebraic structure cause standard tools and techniques to break down. This makes the mathematical study of this model remarkably challenging. Yet, some exciting progress has been made in the last ten years, with the development of a framework of tools and methods which is finally becoming more structured. In these lecture notes we present the existing results and reproduce the techniques developed so far.

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。

↑