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arXiv 2008.06734math.PR
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变维空间上的扭曲布朗运动

Distorted Brownian motions on space with varying dimension

Liping Li, Shuwen Lou

摘要:

粗略地说,一个变维空间至少由两个不同维的分量组成。本文主要讨论的是一个可以看作是$\mathbb{R}^3$在原点连接了一条不包含在$\mathbb{R}^3$中的射线的问题。目的有两个。一方面,我们将在这个空间上引入所谓的变维扭曲布朗运动,并利用Dirichlet形式研究其基本性质。另一方面,我们将证明这些dBMVDs的转移密度函数的联合连续性,并推导出它们的短时热核估计。

英文摘要:

Roughly speaking, a space with varying dimension consists of at least two components with different dimensions. In this paper we will concentrate on the one, which can be treated as $\mathbb{R}^3$ tying a half line not contained by $\mathbb{R}^3$ at the origin. The aim is twofold. On one hand, we will introduce so-called distorted Brownian motions on this space with varying dimension (dBMVDs in abbreviation) and study their basic properties by means of Dirichlet forms. On the other hand, we will prove the joint continuity of the transition density functions of these dBMVDs and derive the short-time heat kernel estimates for them.

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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