Abstract
We introduce the wave front set $WF_s^{p,q}$ by using the wave packet transform. This is another characterization of the Fourier–Lebesgue type wave front set $WF_{\mathcal{F}L_s^q}$. We apply this to the propagation of singularities for the wave equation.
Information
Published: 1 January 2015
First available in Project Euclid: 30 October 2018
zbMATH: 1342.35016
MathSciNet: MR3381308
Digital Object Identifier: 10.2969/aspm/06410417
Subjects:
Primary:
35A18
,
35B65
Keywords:
propagation of singularity
,
wave front set
,
wave packet transfrom
Rights: Copyright © 2015 Mathematical Society of Japan
