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(Non-) Exponential stability for a transmission problem in viscoelasticity

Date
May 11, 2017
Time
3:00 PM - 4:00 PM
Speaker
Prof. Dr. Reinhard Racke
Series
TUD Mathematik Oberseminar Analysis
Language
en
Main Topic
Mathematik
Other Topics
Mathematik
Host
Universität Konstanz
Description
Transmission problems between a (thermo-)viscoelastic system with Kelvin-Voigt damping and a purely elastic system are considered. It is shown that neither the elastic damping by Kelvin-Voigt mechanisms nor the dissipative effect of the temperature in one material can assure the exponential stability of the total system when it is coupled through transmission to a purely elastic system. The approach shows the lack of exponential stability using Weyl's theorem on perturbations of the essential spectrum. Instead, strong stability can be shown using the principle of unique continuation. To prove polynomial stability we use a slightly extended version of the characterization by Borichev and Tomilov.
Links

Last modified: May 4, 2017, 11:15:16 AM

Location

TUD Willers-Bau (WIL C 129)Zellescher Weg12-1401069Dresden
Homepage
https://navigator.tu-dresden.de/etplan/wil/00

Organizer

TUD MathematikWillersbau, Zellescher Weg12-1401069Dresden
Phone
49-351-463 33376
Homepage
http://tu-dresden.de/mathematik
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