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Optimal energy decay in a one-dimensional coupled wave-heat system

Abstract:
We study a simple one-dimensional coupled wave–heat system and obtain a sharp estimate for the rate of energy decay of classical solutions. Our approach is based on the asymptotic theory of C 0-semigroups and in particular on a result due to Borichev and Tomilov (Math Ann 347:455–478, 2010), which reduces the problem of estimating the rate of energy decay to finding a growth bound for the resolvent of the semigroup generator. This technique not only leads to an optimal result, it is also simpler than the methods used by other authors in similar situations.
Publication status:
Accepted
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/s00028-015-0316-0

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author



Publisher:
Springer Verlag
Journal:
Journal of Evolution Equations More from this journal
Volume:
16
Issue:
3
Pages:
649-664
Publication date:
2016-01-11
Acceptance date:
2015-11-19
DOI:
EISSN:
1424-3202
ISSN:
1424-3199


Keywords:
Pubs id:
pubs:580081
UUID:
uuid:d6a13c29-26ca-4aa2-b07a-94c09ab8e076
Local pid:
pubs:580081
Source identifiers:
580081
Deposit date:
2015-12-16
ARK identifier:

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