Hölder curves and parameterizations in the Analyst's Traveling Salesman theorem
Hölder curves and parameterizations in the Analyst's Traveling Salesman theorem
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分析师旅行商定理中的霍尔德曲线和参数化
DOI:
10.1016/j.aim.2019.04.011
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发表时间:
2019
影响因子:
1.7
通讯作者:
Vellis, Vyron
中科院分区:
文献类型:
--
作者:
Badger, Matthew;Naples, Lisa;Vellis, Vyron
We investigate the geometry of sets in Euclidean and infinite-dimensional Hilbert spaces. We establish sufficient conditions that ensure a set of points is contained in the image of a (1/s)-Hölder continuous map f:[0, 1]→ l 2, with s> 1. Our results are motivated by and generalize the “sufficient half” of the Analyst's Traveling Salesman Theorem, which characterizes subsets of rectifiable curves in R N or l 2 in terms of a quadratic sum of linear approximation numbers called Jones' beta numbers. The original proof of the Analyst's Traveling Salesman Theorem depends on a well-known metric characterization of rectifiable curves from the 1920s, which is not available for higher-dimensional curves such as Hölder curves. To overcome this obstacle, we reimagine Jones' non-parametric proof and show how to construct parameterizations of the intermediate approximating curves f k ([0, 1]). We then find conditions in terms of tube approximations that ensure the approximating curves converge to a Hölder curve. As an application to the geometry of measures, we identify conditions that guarantee fractional rectifiability of pointwise doubling measures in R N.
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DOI:
--
发表时间:
1938
期刊:
影响因子:
--
作者:
A. Besicovitch
通讯作者:
A. Besicovitch
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
P. Mattila;M. Vuorinen
通讯作者:
M. Vuorinen
影响因子:
1.8
作者:
Jonas Azzam;Raanan Schul
通讯作者:
Raanan Schul
影响因子:
1.4
作者:
Jonas Azzam;Raanan Schul
通讯作者:
Raanan Schul
DOI:
10.5186/aasfm.2017.4260
发表时间:
2016
期刊:
arXiv: Metric Geometry
影响因子:
--
作者:
Guy C. David;Raanan Schul
通讯作者:
Raanan Schul