Global smoothness of quasiconformal mappings in the Triebel-Lizorkin scale

We study quasiconformal mappings in planar domains Ω and their regularity properties described in terms of Sobolev, Bessel potential or TriebelLizorkin scales. This leads to optimal conditions, in terms of the geometry of the boundary BΩ and of the smoothness of the Beltrami coefficient, that guaran...

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Detalles Bibliográficos
Autores: Astala, Kari, Prats, Martí|||0000-0001-8799-6995, Saksman, Eero|||0000-0002-7630-7135
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:293845
Acceso en línea:https://ddd.uab.cat/record/293845
https://dx.doi.org/urn:doi:10.1016/j.matpur.2024.04.008
Access Level:acceso abierto
Palabra clave:Quasiconformal
Sobolev
Triebel-Lizorkin
Beltrami
Descripción
Sumario:We study quasiconformal mappings in planar domains Ω and their regularity properties described in terms of Sobolev, Bessel potential or TriebelLizorkin scales. This leads to optimal conditions, in terms of the geometry of the boundary BΩ and of the smoothness of the Beltrami coefficient, that guarantee the global regularity of the mappings in these classes. In the TriebelLizorkin class with smoothness below 1, the same conditions give global regularity in Ω for the principal solutions with Beltrami coefficient supported in Ω.