Generalized Mehler formula for time-dependent non-selfadjoint quadratic operators and propagation of singularities
Analysis of PDEs
2017-05-30 v2 Mathematical Physics
math.MP
Spectral Theory
Abstract
We study evolution equations associated to time-dependent dissipative non-selfadjoint quadratic operators. We prove that the solution operators to these non-autonomous evolution equations are given by Fourier integral operators whose kernels are Gaussian tempered distributions associated to non-negative complex symplectic linear transformations, and we derive a generalized Mehler formula for their Weyl symbols. Some applications to the study of the propagation of Gabor singularities (characterizing the lack of Schwartz regularity) for the solutions to non-autonomous quadratic evolution equations are given.
Keywords
Cite
@article{arxiv.1703.02797,
title = {Generalized Mehler formula for time-dependent non-selfadjoint quadratic operators and propagation of singularities},
author = {Karel Pravda-Starov},
journal= {arXiv preprint arXiv:1703.02797},
year = {2017}
}