Symmetry in Calculus of Variations and Control Theory

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Mathematics".

Deadline for manuscript submissions: closed (31 December 2019) | Viewed by 4508

Special Issue Editor


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Guest Editor
Department of Mathematics – Sapienza University of Rome, Rome, Italy
Interests: calculus of variations, control theory, viscosity solutions of nonlinear PDEs, hyperbolic conservation laws

Special Issue Information

Dear Colleagues,

The study of the symmetry of solutions to minimization problems in the Calculus of Variations or to Optimal Control Problems has a long tradition.

This is due to the fact that knowing in advance that solutions to these problems are symmetric (e.g., radially symmetric) is of great importance from both a theoretical and a computational point of view.

Namely, symmetry can be used as a first step in uniqueness results, or to reduce the computational complexity of the numerical approximation of the problem.

This Special Issue invites contributions on various aspects of symmetry for these kinds of problems, including but not limited to radial symmetry of solutions, symmetry with respect to a hyperplane, the moving planes method, symmetrization methods, and rearrangement techniques.

Prof. Graziano Crasta
Guest Editor

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Keywords

  • Radially symmetric solutions
  • Symmetry of minimizers of integral functionals
  • Symmetry of solutions to control problem
  • Symmetrization methods and rearrangements
  • Reflection techniques
  • Moving planes

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Published Papers (2 papers)

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16 pages, 479 KiB  
Article
Non-Coercive Radially Symmetric Variational Problems: Existence, Symmetry and Convexity of Minimizers
by Graziano Crasta and Annalisa Malusa
Symmetry 2019, 11(5), 688; https://doi.org/10.3390/sym11050688 - 18 May 2019
Viewed by 1941
Abstract
We prove the existence of radially symmetric solutions and the validity of Euler–Lagrange necessary conditions for a class of variational problems with slow growth. The results are obtained through the construction of suitable superlinear perturbations of the functional having the same minimizers of [...] Read more.
We prove the existence of radially symmetric solutions and the validity of Euler–Lagrange necessary conditions for a class of variational problems with slow growth. The results are obtained through the construction of suitable superlinear perturbations of the functional having the same minimizers of the original one. Full article
(This article belongs to the Special Issue Symmetry in Calculus of Variations and Control Theory)
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13 pages, 326 KiB  
Article
Bernoulli’s Problem for the Infinity-Laplacian Near a Set with Positive Reach
by Antonio Greco
Symmetry 2019, 11(4), 472; https://doi.org/10.3390/sym11040472 - 2 Apr 2019
Viewed by 2143
Abstract
We consider the exterior as well as the interior free-boundary Bernoulli problem associated with the infinity-Laplacian under a non-autonomous boundary condition. Recall that the Bernoulli problem involves two domains: one is given, the other is unknown. Concerning the exterior problem we assume that [...] Read more.
We consider the exterior as well as the interior free-boundary Bernoulli problem associated with the infinity-Laplacian under a non-autonomous boundary condition. Recall that the Bernoulli problem involves two domains: one is given, the other is unknown. Concerning the exterior problem we assume that the given domain has a positive reach, and prove an existence and uniqueness result together with an explicit representation of the solution. Concerning the interior problem, we obtain a similar result under the assumption that the complement of the given domain has a positive reach. In particular, for the interior problem we show that uniqueness holds in contrast to the usual problem associated to the Laplace operator. Full article
(This article belongs to the Special Issue Symmetry in Calculus of Variations and Control Theory)
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