English

Metaplectic Wigner distributions

Analysis of PDEs 2023-01-24 v3

Abstract

Metaplectic Wigner distributions were recently investigated as natural generalizations of the classical Wigner distribution, and provide a wide class of time-frequency representations that exploits the structure of the symplectic group. This work serves as a survey on metaplectic Wigner distributions and their applications to the time-frequency analysis of modulation spaces and pseudodifferential operators, topics that are all still poorly understood. We also give some new results, generalizing Lieb's uncertainty principle to the so-called matrix Wigner distributions and proving the continuity on Mvsp(Rd)M^p_{v_s}(\mathbb{R}^d) spaces of metaplectic pseudodifferential operators with symbols in Mvsp(Rd)M^{p'}_{v_{-s}}(\mathbb{R}^d).

Keywords

Cite

@article{arxiv.2212.06818,
  title  = {Metaplectic Wigner distributions},
  author = {Gianluca Giacchi},
  journal= {arXiv preprint arXiv:2212.06818},
  year   = {2023}
}
R2 v1 2026-06-28T07:32:57.938Z