$L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations

We consider the Cauchy problem for a coupled system generalizing the thermoelastic plate equations. First we prove resolvent estimates for the stationary operator and conclude the analyticity of the associated semigroup in $L^p$-spaces, $1<p<infty$, for certain values of the parameters of...

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Main Authors: Robert Denk, Reinhard Racke
Format: Article
Language:English
Published: Texas State University 2006-04-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2006/48/abstr.html
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author Robert Denk
Reinhard Racke
author_facet Robert Denk
Reinhard Racke
author_sort Robert Denk
collection DOAJ
description We consider the Cauchy problem for a coupled system generalizing the thermoelastic plate equations. First we prove resolvent estimates for the stationary operator and conclude the analyticity of the associated semigroup in $L^p$-spaces, $1<p<infty$, for certain values of the parameters of the system; here the Newton polygon method is used. Then we prove decay rates of the $L^q(mathbb{R}^n)$-norms of solutions, $2leq qleqinfty$, as time tends to infinity.
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spelling doaj.art-c3b5f5ec1ac447f18a701d2f52f43b6f2022-12-22T03:54:22ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912006-04-01200648116$L^p$-resolvent estimates and time decay for generalized thermoelastic plate equationsRobert DenkReinhard RackeWe consider the Cauchy problem for a coupled system generalizing the thermoelastic plate equations. First we prove resolvent estimates for the stationary operator and conclude the analyticity of the associated semigroup in $L^p$-spaces, $1<p<infty$, for certain values of the parameters of the system; here the Newton polygon method is used. Then we prove decay rates of the $L^q(mathbb{R}^n)$-norms of solutions, $2leq qleqinfty$, as time tends to infinity.http://ejde.math.txstate.edu/Volumes/2006/48/abstr.htmlAnalytic semigroup in $L^p$polynomial decay ratesCauchy problem.
spellingShingle Robert Denk
Reinhard Racke
$L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations
Electronic Journal of Differential Equations
Analytic semigroup in $L^p$
polynomial decay rates
Cauchy problem.
title $L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations
title_full $L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations
title_fullStr $L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations
title_full_unstemmed $L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations
title_short $L^p$-resolvent estimates and time decay for generalized thermoelastic plate equations
title_sort l p resolvent estimates and time decay for generalized thermoelastic plate equations
topic Analytic semigroup in $L^p$
polynomial decay rates
Cauchy problem.
url http://ejde.math.txstate.edu/Volumes/2006/48/abstr.html
work_keys_str_mv AT robertdenk lpresolventestimatesandtimedecayforgeneralizedthermoelasticplateequations
AT reinhardracke lpresolventestimatesandtimedecayforgeneralizedthermoelasticplateequations