The Dirichlet problem for nonlocal Lévy-type operators

We present the theory of the Dirichlet problem for nonlocal operators which are the generators of general pure-jump symmetric Lévy processes whose Lévy measures need not be absolutely continuous. We establish basic facts about the Sobolev spaces for such operators, in particular we prove the existen...

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Detalles Bibliográficos
Autor: Rutkowski, Artur
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:182690
Acceso en línea:https://ddd.uab.cat/record/182690
https://dx.doi.org/urn:doi:10.5565/PUBLMAT6211811
Access Level:acceso abierto
Palabra clave:Dirichlet problem
Nonlocal operator
Maximum principle
Weak solutions
Extension operator
Descripción
Sumario:We present the theory of the Dirichlet problem for nonlocal operators which are the generators of general pure-jump symmetric Lévy processes whose Lévy measures need not be absolutely continuous. We establish basic facts about the Sobolev spaces for such operators, in particular we prove the existence and uniqueness of weak solutions. We present strong and weak variants of maximum principle, and L∞ bounds for solutions. We also discuss the related extension problem in C1,1 domains.