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arXiv 2101.03092math.MG
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Gromov双曲空间上一致化测度的加倍不等式和Poincaré不等式

Doubling and Poincaré inequalities for uniformized measures on Gromov hyperbolic spaces

Clark Butler

摘要:

本文推广了Björn-Björn-Shanmugalingam \cite{BBS20}关于Gromov双曲空间在Bonk-Heinonen-Koka一致化过程下测度如何变换的最新结果,证明了这些结果在我们在\cite{Bu20}中引入的Busemann函数一致化Gromov双曲空间的情形下也成立.特别地,起始测度的一致局部加倍不等式和一致局部Poincaré不等式转化为一致化测度的整体加倍不等式和整体Poincaré不等式。然后,我们证明了在具有黎曼测度的闭负曲黎曼流形的万有覆盖的一致化的情形下,可以得到一致化测度加倍的指数的尖锐范围,并满足$1$ -Poincaré不等式.最后,我们介绍了一致度量空间的一致反演过程,并证明了对于任何$p \geq 1$,通过一致反演,双重性质和$p$-Poincaré不等式都是保持的.

英文摘要:

We generalize the recent results of Björn-Björn-Shanmugalingam \cite{BBS20} concerning how measures transform under the uniformization procedure of Bonk-Heinonen-Koskela for Gromov hyperbolic spaces \cite{BHK} by showing that these results also hold in the setting of uniformizing Gromov hyperbolic spaces by Busemann functions that we introduced in \cite{Bu20}. In particular uniformly local doubling and uniformly local Poincaré inequalities for the starting measure transform into global doubling and global Poincaré inequalities for the uniformized measure. We then show in the setting of uniformizations of universal covers of closed negatively curved Riemannian manifolds equipped with the Riemannian measure that one can obtain sharp ranges of exponents for the uniformized measure to be doubling and satisfy a $1$-Poincaré inequality. Lastly we introduce the procedure of uniform inversion for uniform metric spaces, and show that both the doubling property and the $p$-Poincaré inequality are preserved by uniform inversion for any $p \geq 1$.

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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