Weighted Sobolev L2 estimates for a class of Fourier integral operators

Abstract

In this paper we develop elements of the global calculus of Fourier integral operators in $R^n$ under minimal decay assumptions on phases and amplitudes. We also establish global weighted Sobolev $L^2$ estimates for a class of Fourier integral operators that appears in the analysis of global smoothing problems for dispersive partial differential equations. As an application, we exhibit a new type of smoothing estimates for hyperbolic equations, where the decay of data in space is quantitatively translated into the time decay of solutions.

arXiv comment27 pages

References in corpus (1)

• Smoothing estimates for evolution equations via canonical transforms and comparison