Energy decay for linear dissipative wave equations in exterior domains

@inproceedings{Aloui2015EnergyDF,
  title={Energy decay for linear dissipative wave equations in exterior domains},
  author={Lassaad Aloui and Slim Ibrahim and Moez Khenissi},
  year={2015}
}
In earlier works [2, 5], we have shown the uniform decay of the local energy of the damped wave equation in exterior domain when the damper is spatially localized near captive rays. In order to have uniform decay of the total energy, the damper has also to act at space infinity. In this work, we establish uniform decay of both the local and global energies. The rates of decay turns out to be the same as those for the heat equation, which shows that an effective damper at space infinity… CONTINUE READING

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