Density and extension of differentiable functions on metric measure spaces

We consider vector valued mappings de ned on metric measure spaces with a measurable differ-entiable structure and study both approximations by nicer mappings and regular extensions of the givenmappings when de ned on closed subsets. Therefore, we propose a rst approach to these problems, largelystu...

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Detalles Bibliográficos
Autores: Espínola García, Rafael, Sánchez González, Luis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/144788
Acceso en línea:https://hdl.handle.net/11441/144788
https://doi.org/10.1515/agms-2020-0130
Access Level:acceso abierto
Palabra clave:Smooth extensions
smooth approximations
metric measure spaces
measurable differentiablestructures
Lipschitz mappings
Descripción
Sumario:We consider vector valued mappings de ned on metric measure spaces with a measurable differ-entiable structure and study both approximations by nicer mappings and regular extensions of the givenmappings when de ned on closed subsets. Therefore, we propose a rst approach to these problems, largelystudied on Euclidean and Banach spaces during the last century, for rst order differentiable functions de- ned on these metric measure spaces.