Mixed Boundary Value Problems for the Elasticity System in Exterior Domains

We study the properties of solutions of the mixed Dirichlet−Robin and Neumann−Robin problems for the linear system of elasticity theory in the exterior of a compact set and the asymptotic behavior of solutions of these problems at infinity under the assumption that the energy int...

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Main Author: Hovik A. Matevossian
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Mathematical and Computational Applications
Subjects:
Online Access:https://www.mdpi.com/2297-8747/24/2/58
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author Hovik A. Matevossian
author_facet Hovik A. Matevossian
author_sort Hovik A. Matevossian
collection DOAJ
description We study the properties of solutions of the mixed Dirichlet&#8722;Robin and Neumann&#8722;Robin problems for the linear system of elasticity theory in the exterior of a compact set and the asymptotic behavior of solutions of these problems at infinity under the assumption that the energy integral with weight <inline-formula> <math display="inline"> <semantics> <msup> <mrow> <mo>|</mo> <mi>x</mi> <mo>|</mo> </mrow> <mi>a</mi> </msup> </semantics> </math> </inline-formula> is finite for such solutions. We use the variational principle and depending on the value of the parameter <i>a</i>, obtain uniqueness (non-uniqueness) theorems of the mixed problems or present exact formulas for the dimension of the space of solutions.
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spelling doaj.art-3a1ff5250f6a4ca480ca8e27470f30952022-12-22T01:26:24ZengMDPI AGMathematical and Computational Applications2297-87472019-06-012425810.3390/mca24020058mca24020058Mixed Boundary Value Problems for the Elasticity System in Exterior DomainsHovik A. Matevossian0Federal Research Center “Computer Science and Control”, Russian Academy of Sciences, Vavilov str., 40, Moscow 119333, RussiaWe study the properties of solutions of the mixed Dirichlet&#8722;Robin and Neumann&#8722;Robin problems for the linear system of elasticity theory in the exterior of a compact set and the asymptotic behavior of solutions of these problems at infinity under the assumption that the energy integral with weight <inline-formula> <math display="inline"> <semantics> <msup> <mrow> <mo>|</mo> <mi>x</mi> <mo>|</mo> </mrow> <mi>a</mi> </msup> </semantics> </math> </inline-formula> is finite for such solutions. We use the variational principle and depending on the value of the parameter <i>a</i>, obtain uniqueness (non-uniqueness) theorems of the mixed problems or present exact formulas for the dimension of the space of solutions.https://www.mdpi.com/2297-8747/24/2/58elasticity systemDirichlet–Robin problemNeumann–Robin problemSobolev spaceweighted energy integral
spellingShingle Hovik A. Matevossian
Mixed Boundary Value Problems for the Elasticity System in Exterior Domains
Mathematical and Computational Applications
elasticity system
Dirichlet–Robin problem
Neumann–Robin problem
Sobolev space
weighted energy integral
title Mixed Boundary Value Problems for the Elasticity System in Exterior Domains
title_full Mixed Boundary Value Problems for the Elasticity System in Exterior Domains
title_fullStr Mixed Boundary Value Problems for the Elasticity System in Exterior Domains
title_full_unstemmed Mixed Boundary Value Problems for the Elasticity System in Exterior Domains
title_short Mixed Boundary Value Problems for the Elasticity System in Exterior Domains
title_sort mixed boundary value problems for the elasticity system in exterior domains
topic elasticity system
Dirichlet–Robin problem
Neumann–Robin problem
Sobolev space
weighted energy integral
url https://www.mdpi.com/2297-8747/24/2/58
work_keys_str_mv AT hovikamatevossian mixedboundaryvalueproblemsfortheelasticitysysteminexteriordomains