Approximation of variational problems with a convexity constraint by PDEs of Abreu type
Carlier, Guillaume; Radice, Teresa (2018), Approximation of variational problems with a convexity constraint by PDEs of Abreu type. https://basepub.dauphine.fr/handle/123456789/18467
TypeDocument de travail / Working paper
External document linkhttps://hal.archives-ouvertes.fr/hal-01802925
Series titleCahier de recherche CEREMADE, Université Paris-Dauphine
MetadataShow full item record
CEntre de REcherches en MAthématiques de la DEcision [CEREMADE]
Dipartimento di Matematica e Applicazioni “Renato Caccioppoli”
Abstract (EN)Motivated by some variational problems subject to a convexity constraint, we consider an approximation using the logarithm of the Hessian determinant as a barrier for the constraint. We show that the minimizer of this penalization can be approached by solving a second boundary value problem for Abreu's equation which is a well-posed nonlinear fourth-order elliptic problem. More interestingly, a similar approximation result holds for the initial constrained variational problem.
Subjects / KeywordsAbreu equation; Monge-Ampère operator; calculus of varia-; tions with a convexity constraint
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