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Exponential decay for damped Klein-Gordon equations on asymptotically cylindrical and conic manifolds

Wang, Ruoyu PT; (2020) Exponential decay for damped Klein-Gordon equations on asymptotically cylindrical and conic manifolds. arXiv.org: Ithaca (NY), USA. Green open access

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Abstract

We study the decay of the global energy for the damped Klein-Gordon equation on non-compact manifolds with finitely many cylindrical and subconic ends up to bounded perturbation. We prove that under the Geometric Control Condition, the decay is exponential, and that under the weaker Network Control Condition, the decay is logarithmic, by developing the global Carleman estimate with multiple weights.

Type: Working / discussion paper
Title: Exponential decay for damped Klein-Gordon equations on asymptotically cylindrical and conic manifolds
Open access status: An open access version is available from UCL Discovery
DOI: 10.48550/arXiv.2004.13894
Publisher version: https://doi.org/10.48550/arXiv.2004.13894
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics
URI: https://discovery.ucl.ac.uk/id/eprint/10173077
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