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2017

Sparse optimal control for fractional diffusion

Otárola, Enrique, Salgado, Abner J.

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We consider an optimal control problem that entails the minimization of a nondifferentiable cost functional, fractional diffusion as state equation and constraints on the control variable.

We provide existence, uniqueness and regularity results together with first order optimality conditions.
In order to propose a solution technique, we realize fractional diffusion as the Dirichlet-to-Neumann map for a nonuniformly elliptic operator and consider an equivalent optimal control problem with a nonuniformly elliptic equation as state equation.
The rapid decay of the solution to this problem suggests a truncation that is suitable for numerical approximation.

Sparse optimal control for fractional diffusion · Around

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Theory, methods and applications, Translated from the 2005 German original by Jürgen Sprekels
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