Metaplectic Gabor frames and symplectic analysis of time-frequency spaces

E Cordero, G Giacchi - Applied and Computational Harmonic Analysis, 2024 - Elsevier
We introduce new frames, called metaplectic Gabor frames, as natural generalizations of
Gabor frames in the framework of metaplectic Wigner distributions, cf.[7],[8],[5],[17],[27],[28] …

[HTML][HTML] Quantum harmonic analysis on locally compact groups

S Halvdansson - Journal of Functional Analysis, 2023 - Elsevier
On a locally compact group we introduce covariant quantization schemes and analogs of
phase space representations as well as mixed-state localization operators. These …

[HTML][HTML] Symplectic analysis of time-frequency spaces

E Cordero, G Giacchi - Journal de Mathématiques Pures et Appliquées, 2023 - Elsevier
We present a different symplectic point of view in the definition of weighted modulation
spaces M mp, q (R d) and weighted Wiener amalgam spaces W (FL m 1 p, L m 2 q)(R d). All …

Quantum Harmonic Analysis on locally compact abelian groups

R Fulsche, N Galke - Journal of Fourier Analysis and Applications, 2025 - Springer
We extend the notions of quantum harmonic analysis, as introduced in R. Werner's paper
from 1984 (J Math Phys 25 (5): 1404–1411), to abelian phase spaces, by which we mean a …

A Wiener Tauberian theorem for operators and functions

F Luef, E Skrettingland - arxiv preprint arxiv:2005.04160, 2020 - arxiv.org
We prove variants of Wiener's Tauberian theorem in the framework of quantum harmonic
analysis, ie for convolutions between an absolutely integrable function and a trace class …

[HTML][HTML] Affine quantum harmonic analysis

E Berge, SM Berge, F Luef, E Skrettingland - Journal of Functional Analysis, 2022 - Elsevier
We develop a quantum harmonic analysis framework for the affine group. This encapsulates
several examples in the literature such as affine localization operators, covariant integral …

[HTML][HTML] Correspondence theory on p-Fock spaces with applications to Toeplitz algebras

R Fulsche - Journal of Functional Analysis, 2020 - Elsevier
We prove several results concerning the theory of Toeplitz algebras over p-Fock spaces
using a correspondence theory of translation invariant symbol and operator spaces. The …

Density of Toeplitz operators in rotation-invariant Toeplitz algebras

V Dewage, M Mitkovski - arxiv preprint arxiv:2310.12367, 2023 - arxiv.org
We use results and techniques from Werner's``quantum harmonic analysis''to show that $ G
$-invariant Toeplitz operators are norm dense in $ G $-invariant Toeplitz algebras for all …

Mixed-state localization operators: Cohen's class and trace class operators

F Luef, E Skrettingland - Journal of Fourier Analysis and Applications, 2019 - Springer
We study mixed-state localization operators from the perspective of Werner's operator
convolutions which allows us to extend known results from the rank-one case to trace class …

[HTML][HTML] The Laplacian of an operator and the radial Toeplitz algebra

V Dewage, M Mitkovski - Journal of Mathematical Analysis and Applications, 2025 - Elsevier
Using tools from quantum harmonic analysis, we show that the domain of the Laplacian of
an operator is dense in the Toeplitz algebra over the Fock space F 2 (C n). As an …