Lipschitz mappings, metric differentiability, and factorization through metric trees
Lipschitz mappings, metric differentiability, and factorization through metric trees
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Lipschitz 映射、度量可微性以及通过度量树进行分解
DOI:
10.1112/jlms.12644
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Hajłasz, Piotr
中科院分区:
文献类型:
--
作者:
Esmayli, Behnam;Hajłasz, Piotr
Given a Lipschitz map f$f$ from a cube into a metric space, we find several equivalent conditions for f$f$ to have a Lipschitz factorization through a metric tree. As an application, we prove a recent conjecture of David and Schul. The techniques developed for the proof of the factorization result yield several other new and seemingly unrelated results. We prove that if f$f$ is a Lipschitz mapping from an open set in Rn$\mathbb {R}^n$ onto a metric space X$X$, then the topological dimension of X$X$ equals n$n$ if and only if X$X$ has positive n$n$‐dimensional Hausdorff measure. We also prove an area formula for length‐preserving maps between metric spaces, which gives, in particular, a new formula for integration on countably rectifiable sets in the Heisenberg group.
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DOI:
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发表时间:
2007
期刊:
影响因子:
--
作者:
P. Andreev;V. Berestovskii
通讯作者:
V. Berestovskii
DOI:
10.1112/jlms.12595
发表时间:
2022
期刊:
Journal of the London Mathematical Society
影响因子:
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作者:
David, Guy C.;Schul, Raanan
通讯作者:
Schul, Raanan
影响因子:
1
作者:
S. Wenger
通讯作者:
S. Wenger
影响因子:
2
作者:
A. Petrunin;Stephan Stadler
通讯作者:
Stephan Stadler
DOI:
10.2140/gt.2018.22.591
发表时间:
2016
期刊:
arXiv: Differential Geometry
影响因子:
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作者:
A. Lytchak;S. Wenger
通讯作者:
S. Wenger