On stabilization and control for the critical Klein-Gordon equation on a 3-D compact manifold

Details On stabilization and control for the critical Klein-Gordon equation on a 3-D compact manifold On stabilization and control for the critical Klein-Gordon equation on a 3-D compact manifold

2010-04-16

arxiv.org/abs/1004.2768v1

Mathematics

Analysis of PDEs

Scientific paper

In this article, we study the internal stabilization and control of the critical nonlinear Klein-Gordon equation on 3-D compact manifolds. Under a geometric assumption slightly stronger than the classical geometric control condition, we prove exponential decay for some solutions bounded in the energy space but small in a lower norm. The proof combines profile decomposition and microlocal arguments. This profile decomposition, analogous to the one of Bahouri-G\'erard on $\R^3$, is performed by taking care of possible geometric effects. It uses some results of S. Ibrahim on the behavior of concentrating waves on manifolds.

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