On a class of saddle point problems and convergence results

We consider an abstract mixed variational problem consisting of two inequalities. The first one is governed by a functional φ, possibly non-differentiable. The second inequality is governed by a nonlinear term depending on a non negative parameter ǫ. We study the existence and the uniqueness of the so...

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Main Authors: Mariana Chivu Cojocaru, Andaluzia Matei
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2020-10-01
Series:Mathematical Modelling and Analysis
Subjects:
Online Access:https://www.bjrbe.vgtu.lt/index.php/MMA/article/view/11140
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author Mariana Chivu Cojocaru
Andaluzia Matei
author_facet Mariana Chivu Cojocaru
Andaluzia Matei
author_sort Mariana Chivu Cojocaru
collection DOAJ
description We consider an abstract mixed variational problem consisting of two inequalities. The first one is governed by a functional φ, possibly non-differentiable. The second inequality is governed by a nonlinear term depending on a non negative parameter ǫ. We study the existence and the uniqueness of the solution by means of the saddle point theory. In addition to existence and uniqueness results, we deliver convergence results for ǫ → 0. Finally, we illustrate the abstract results by means of two examples arising from contact mechanics.
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spelling doaj.art-e2388f04ab6041fbb90bc02f2175981f2022-12-21T20:18:00ZengVilnius Gediminas Technical UniversityMathematical Modelling and Analysis1392-62921648-35102020-10-0125410.3846/mma.2020.11140On a class of saddle point problems and convergence resultsMariana Chivu Cojocaru0Andaluzia Matei1Doctoral School of Sciences, University of Craiova, A.I. Cuza 13, 200585 Craiova, RomaniaDepartment of Mathematics, University of Craiova, A.I. Cuza 13, 200585 Craiova, RomaniaWe consider an abstract mixed variational problem consisting of two inequalities. The first one is governed by a functional φ, possibly non-differentiable. The second inequality is governed by a nonlinear term depending on a non negative parameter ǫ. We study the existence and the uniqueness of the solution by means of the saddle point theory. In addition to existence and uniqueness results, we deliver convergence results for ǫ → 0. Finally, we illustrate the abstract results by means of two examples arising from contact mechanics.https://www.bjrbe.vgtu.lt/index.php/MMA/article/view/11140mixed variational problempenalty termsaddle pointconvergence result
spellingShingle Mariana Chivu Cojocaru
Andaluzia Matei
On a class of saddle point problems and convergence results
Mathematical Modelling and Analysis
mixed variational problem
penalty term
saddle point
convergence result
title On a class of saddle point problems and convergence results
title_full On a class of saddle point problems and convergence results
title_fullStr On a class of saddle point problems and convergence results
title_full_unstemmed On a class of saddle point problems and convergence results
title_short On a class of saddle point problems and convergence results
title_sort on a class of saddle point problems and convergence results
topic mixed variational problem
penalty term
saddle point
convergence result
url https://www.bjrbe.vgtu.lt/index.php/MMA/article/view/11140
work_keys_str_mv AT marianachivucojocaru onaclassofsaddlepointproblemsandconvergenceresults
AT andaluziamatei onaclassofsaddlepointproblemsandconvergenceresults