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We deduce continuity and (global) wave-front properties of classes of Fourier multipliers, pseudo-differential, and Fourier integral operators when acting on Orlicz spaces, or more generally, on Orlicz-Sobolev type spaces. In particular, we…

Functional Analysis · Mathematics 2024-08-05 Matteo Bonino , Sandro Coriasco , Albin Petersson , Joachim Toft

Specific global symbol classes and corresponding pseudodifferential operators of infinite order that act continuously on the space of tempered ultradistributions of Beurling and Roumieu type are constructed. For these classes, symbolic…

Analysis of PDEs · Mathematics 2013-03-26 Bojan Prangoski

In this paper we focus on the almost-diagonalization properties of $\tau$-pseudodifferential operators using techniques from time-frequency analysis. Our function spaces are modulation spaces and the special class of Wiener amalgam spaces…

Functional Analysis · Mathematics 2019-10-22 Elena Cordero , Fabio Nicola , Salvatore Ivan Trapasso

We give a fundament for Berezin's analytic $\Psi$do considered in \cite{Berezin71} in terms of Bargmann images of Pilipovi{\'c} spaces. We deduce basic continuity results for such $\Psi$do, especially when the operator kernels are in…

Functional Analysis · Mathematics 2019-03-27 Nenad Teofanov , Joachim Toft

We will present versions of the Rellich-Kondrachov theorem for pseudo-differential operators acting on localizable Hardy spaces. One of the techniques includes boundedness properties for pseudodifferential operators with symbols in the…

Analysis of PDEs · Mathematics 2018-10-11 G. Hoepfner , R. Kapp , T. Picon

First, we reconsider the magnetic pseudodifferential calculus and show that for a large class of non-decaying symbols, their corresponding magnetic pseudodifferential operators can be represented, up to a global gauge transform, as…

Analysis of PDEs · Mathematics 2019-05-06 Horia D. Cornean , Henrik Garde , Benjamin Støttrup , Kasper S. Sørensen

In the paper we extend the spectral invariance of pseudodifferential operators acting on (non-weighted) classical modulation spaces to allow the Lebesgue exponents to be smaller than one. These spaces occur naturally in approximation theory…

Functional Analysis · Mathematics 2023-05-29 Karlheinz Gröchenig , Christine Pfeuffer , Joachim Toft

This paper finishes the goal of the authors started in two previous manuscripts dedicated to revisiting the continuity properties of toroidal pseudo-differential operators with symbols in the H\"ormander classes. Here we prove pointwise…

Analysis of PDEs · Mathematics 2025-09-18 Duván Cardona , Manuel Alejandro Martínez

We define new symbol classes for pseudodifferntial operators and investigate their pseudodifferential calculus. The symbol classes are parametrized by commutative convolution algebras. To every solid convolution algebra over a lattice we…

Functional Analysis · Mathematics 2010-12-21 Karlheinz Gröchenig , Ziemowit Rzeszotnik

Let $\Phi$ be a Young function. We study convolution properties for symbol classes $s_{A,\Phi}$, which consist of all $a$ such that the pseudo-differential operator $\operatorname{Op} _A(a)$ is in the Orlicz Schatten class $\mathscr I _\Phi…

Functional Analysis · Mathematics 2025-09-22 Wolfram Bauer , Robert Fulsche , Joachim Toft

In this work we obtain continuity results on H\"older spaces for operators belonging to a Weyl-H\"ormander calculus for metrics such that the class of the associated operators contains, in particular, certain hypoelliptic laplacians. With…

Analysis of PDEs · Mathematics 2019-04-04 Duván Cardona

We obtain a number of explicit estimates for quasi-norms of pseudo-differential operators in the Schatten-von Neumann classes $S_q$ with $0<q\le 1$. The estimates are applied to derive semi-classical bounds for operators with smooth or…

Spectral Theory · Mathematics 2022-01-27 Alexander V. Sobolev

In this article, we explore the boundedness properties of pseudo-differential operators on radial sections of line bundles over the Poincar\'e upper half plane, even when dealing with symbols of limited regularity. We first prove the…

Classical Analysis and ODEs · Mathematics 2023-10-18 Tapendu Rana , Michael Ruzhansky

We investigate mapping properties for the Bargmann transform on modulation spaces whose weights and their reciprocals are allowed to grow faster than exponentials. We prove that this transform is isometric and bijective from modulation…

Functional Analysis · Mathematics 2011-06-23 Joachim Toft

Following previous works for the unit ball, we define quasi-radial pseudo-homogeneous symbols on the projective space and obtain the corresponding commutativity results for Toeplitz operators. A geometric interpretation of these symbols in…

Functional Analysis · Mathematics 2016-08-31 Miguel Antonio Morales-Ramos , Raúl Quiroga-Barranco , Armando Sánchez-Nungaray

In this paper, we study the boundedness of pseudo-differential operators with symbols in $S_{\rho,\delta}^m$ on the modulation spaces $M^{p,q}$. We discuss the order $m$ for the boundedness $\mathrm{Op}(S_{\rho,\delta}^m) \subset…

Functional Analysis · Mathematics 2007-05-23 Mitsuru Sugimoto , Naohito Tomita

Inductive and projective type sequence spaces of sub- and super-exponential growth, and the corresponding inductive and projective limits of modulation spaces are considered as a framework for almost diagonalization of pseudo-differential…

Functional Analysis · Mathematics 2024-02-29 Stevan Pilipović , Nenad Teofanov , Filip Tomić

We consider pseudodifferential operators on functions on $\R^{n+1}$ which commute with the Euler operator, and can thus be restricted to spaces of functions homogeneous of some given degree. Their symbols can be regarded as functions on a…

Representation Theory · Mathematics 2007-05-23 Michael Pevzner , André Unterberger

A symbolic calculus for a pseudo-differential operators acting on sections of a homogeneous vector bundle over a compact homogeneous space $G/H$ with compact $G$ and $H$ is developed. We realize the symbol of a pseudo-differential operator…

Analysis of PDEs · Mathematics 2019-12-17 Mitsuru Wilson

We prove that pseudo-differential operators with symbols in the class $S_{1,\delta}^0$ ($0<\delta<1$) are not always bounded on the modulation space $M^{p,q}$ ($q\neq2$).

Functional Analysis · Mathematics 2007-05-23 Mitsuru Sugimoto , Naohito Tomita