Type: Article
Publication Date: 2006-12-01
Citations: 30
DOI: https://doi.org/10.1142/s0219891606000975
The local decay of energy is established for solutions to certain linear, multidimensional symmetric hyperbolic systems, with constraints. The key assumptions are isotropy and nondegeneracy of the associated symbols. Examples are given, including Maxwell's equations and linearized elasticity. Such estimates prove useful in treating nonlinear perturbations.