Dual Variational Formulations for a Large Class of Non-Convex Models in the Calculus of Variations

Fabio Silva Botelho ()
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Fabio Silva Botelho: Department of Mathematics, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil

Mathematics, 2022, vol. 11, issue 1, 1-30

Abstract: This article develops dual variational formulations for a large class of models in variational optimization. The results are established through basic tools of functional analysis, convex analysis and duality theory. The main duality principle is developed as an application to a Ginzburg–Landau-type system in superconductivity in the absence of a magnetic field. In the first section, we develop new general dual convex variational formulations, more specifically, dual formulations with a large region of convexity around the critical points, which are suitable for the non-convex optimization for a large class of models in physics and engineering. Finally, in the last section, we present some numerical results concerning the generalized method of lines applied to a Ginzburg–Landau-type equation.

Keywords: duality principles; non-convex optimization; generalized method of lines (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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