On the regularity of optimal potentials in control problems governed by elliptic equations

In this paper we consider optimal control problems where the control variable is a potential and the state equation is an elliptic partial differential equation of a Schrödinger type, governed by the Laplace operator. The cost functional involves the solution of the state equation and a penalization...

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Detalles Bibliográficos
Autores: Buttazzo, Giuseppe, Casado Díaz, Juan, Maestre Caballero, Faustino
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:dnet:idus________::7105272a8d6931bec509b47ec350ae03
Acceso en línea:https://hdl.handle.net/11441/185930
https://doi.org/10.1515/acv-2023-0010
Access Level:acceso abierto
Palabra clave:Optimal potentials
BV regularity
bang-bang property
shape optimization
control problems
Descripción
Sumario:In this paper we consider optimal control problems where the control variable is a potential and the state equation is an elliptic partial differential equation of a Schrödinger type, governed by the Laplace operator. The cost functional involves the solution of the state equation and a penalization term for the control variable. While the existence of an optimal solution simply follows by the direct methods of the calculus of variations, the regularity of the optimal potential is a difficult question and under the general assumptions we consider, no better regularity than the BV one can be expected. This happens in particular for the cases in which a bang-bang solution occurs, where optimal potentials are characteristic functions of a domain. We prove the BV regularity of optimal solutions through a regularity result for PDEs. Some numerical simulations show the behavior of optimal potentials in some particular cases.