Area minimizing discs in locally non-compact metric spaces

Fuente: arXiv
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Main Authors: Guo, Chang-Yu, Wenger, Stefan
Format: Preprint
Published: 2017
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author Guo, Chang-Yu
Wenger, Stefan
author_facet Guo, Chang-Yu
Wenger, Stefan
contents We solve the classical problem of Plateau in every metric space which is $1$-complemented in an ultra-completion of itself. This includes all proper metric spaces as well as many locally non-compact metric spaces, in particular, all dual Banach spaces, some non-dual Banach spaces such as $L^1$, all Hadamard spaces, and many more. Our results generalize corresponding results of Lytchak and the second author from the setting of proper metric spaces to that of locally non-compact ones. We furthermore solve the Dirichlet problem in the same class of spaces. The main new ingredient in our proofs is a suitable generalization of the Rellich-Kondrachov compactness theorem, from which we deduce a result about ultra-limits of sequences of Sobolev maps.
format Preprint
id arxiv_https___arxiv_org_abs_1701_06736
institution arXiv
publishDate 2017
record_format arxiv
spellingShingle Area minimizing discs in locally non-compact metric spaces
Guo, Chang-Yu
Wenger, Stefan
Metric Geometry
Analysis of PDEs
49Q05, 53C23
We solve the classical problem of Plateau in every metric space which is $1$-complemented in an ultra-completion of itself. This includes all proper metric spaces as well as many locally non-compact metric spaces, in particular, all dual Banach spaces, some non-dual Banach spaces such as $L^1$, all Hadamard spaces, and many more. Our results generalize corresponding results of Lytchak and the second author from the setting of proper metric spaces to that of locally non-compact ones. We furthermore solve the Dirichlet problem in the same class of spaces. The main new ingredient in our proofs is a suitable generalization of the Rellich-Kondrachov compactness theorem, from which we deduce a result about ultra-limits of sequences of Sobolev maps.
title Area minimizing discs in locally non-compact metric spaces
topic Metric Geometry
Analysis of PDEs
49Q05, 53C23
url https://arxiv.org/abs/1701.06736