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Singular limits in the Cauchy problem for the damped extensible beam equation

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2015

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Journal of Differential Equations. 2015, 259(4), pp. 1297-1322. ISSN 0022-0396. eISSN 1090-2732. Available under: doi: 10.1016/j.jde.2015.02.045

Zusammenfassung

We study the Cauchy problem of the Ball model for an extensible beam:
ρ∂2tu+δ∂tu+κ∂4xu+η∂t4xu=(α+β∫R|∂xu|2dx+γη∫Rtxu∂xudx)∂2xu.

The aim of this paper is to investigate singular limits as ρ→0 for this problem. In the authors' previous paper [8] decay estimates of solutions uρuρ to the equation in the case ρ>0 were shown. With the help of the decay estimates we describe the singular limit in the sense of the following uniform (in time) estimate:
‖uρ−u0‖L∞([0,∞);H2(R))≤Cρ .

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510 Mathematik

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Decay estimate, Extensible beam, Cauchy problem, Singular limit, Ball's model, Kelvin–Voigt damping

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ISO 690RACKE, Reinhard, Shuji YOSHIKAWA, 2015. Singular limits in the Cauchy problem for the damped extensible beam equation. In: Journal of Differential Equations. 2015, 259(4), pp. 1297-1322. ISSN 0022-0396. eISSN 1090-2732. Available under: doi: 10.1016/j.jde.2015.02.045
BibTex
@article{Racke2015Singu-31284,
  year={2015},
  doi={10.1016/j.jde.2015.02.045},
  title={Singular limits in the Cauchy problem for the damped extensible beam equation},
  number={4},
  volume={259},
  issn={0022-0396},
  journal={Journal of Differential Equations},
  pages={1297--1322},
  author={Racke, Reinhard and Yoshikawa, Shuji}
}
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    <dcterms:abstract xml:lang="eng">We study the Cauchy problem of the Ball model for an extensible beam:&lt;br /&gt;ρ∂&lt;sup&gt;2&lt;/sup&gt;&lt;sub&gt;t&lt;/sub&gt;u+δ∂&lt;sub&gt;t&lt;/sub&gt;u+κ∂&lt;sup&gt;4&lt;/sup&gt;&lt;sub&gt;x&lt;/sub&gt;u+η∂&lt;sub&gt;t&lt;/sub&gt;∂&lt;sup&gt;4&lt;/sup&gt;&lt;sub&gt;x&lt;/sub&gt;u=(α+β∫&lt;sub&gt;R&lt;/sub&gt;|∂&lt;sub&gt;x&lt;/sub&gt;u|&lt;sup&gt;2&lt;/sup&gt;dx+γη∫&lt;sub&gt;R&lt;/sub&gt;∂&lt;sub&gt;t&lt;/sub&gt;∂&lt;sub&gt;x&lt;/sub&gt;u∂&lt;sub&gt;x&lt;/sub&gt;udx)∂&lt;sup&gt;2&lt;/sup&gt;&lt;sub&gt;x&lt;/sub&gt;u.&lt;br /&gt;&lt;br /&gt;The aim of this paper is to investigate singular limits as ρ→0 for this problem. In the authors' previous paper [8] decay estimates of solutions uρuρ to the equation in the case ρ&gt;0 were shown. With the help of the decay estimates we describe the singular limit in the sense of the following uniform (in time) estimate:&lt;br /&gt;‖uρ−u0‖L∞([0,∞);H2(R))≤Cρ .</dcterms:abstract>
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