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The gauge covariant magnetic Weyl calculus has been introduced and studied in previous works. We prove criteria in terms of commutators for operators to be magnetic pseudo-differential operators of suitable symbol classes. The approach is…

数学物理 · 物理学 2013-04-10 Viorel Iftimie , Marius Mantoiu , Radu Purice

We extend the matrix representation of magnetic pseudo-differential operators in a tight Gabor frame from [arXiv:1804.05220, arXiv:2212.12229] to asymmetrical quantizations and smooth symbols dominated by a tempered weight (and not just…

数学物理 · 物理学 2026-02-18 Mikkel Hviid Thorn

In this monograph we develop magnetic pseudodifferential theory for operator-valued and equivariant operator-valued functions and distributions from first principles. These have found plentiful applications in mathematical physics,…

数学物理 · 物理学 2022-10-13 Giuseppe De Nittis , Max Lein , Marcello Seri

We study structural properties of Wiener-Lebesgue spaces with respect to a slowly varying metrics and certain Lebesgue parameters. For $p\in (0,1]$, we deduce Schatten-$p$ properties for pseudo-differential operators whose symbols, together…

泛函分析 · 数学 2024-05-09 Matteo Bonino , Sandro Coriasco , Albin Petersson , Joachim Toft

First, we give a new proof for the Beals commutator criterion for non-magnetic Weyl pseudo-differential operators based on classical Gabor tight frames. Second, by introducing a modified 'magnetic' Gabor tight frame, we naturally derive the…

偏微分方程分析 · 数学 2026-05-19 Horia D. Cornean , Bernard Helffer , Radu Purice

We prove criteria for a {\it 'magnetic' Weyl operator} to be in a Schatten-von Neuman class by extending a method developed by H. Cordes, T. Kato and G. Arsu.

数学物理 · 物理学 2018-03-07 Nassim Athmouni , Radu Purice

In previous papers, a generalization of the Weyl calculus was introduced in connection with the quantization of a particle moving in $\mathbb R^n$ under the influence of a variable magnetic field $B$. It incorporates phase factors defined…

偏微分方程分析 · 数学 2013-04-10 Viorel Iftimie , Marius Mantoiu , Radu Purice

This work develops a magnetic pseudodifferential calculus for super operators OpA(F); these map operators onto operators (as opposed to Lp functions onto Lq functions). Here, F could be a tempered distribution or a H\"ormander symbol. An…

数学物理 · 物理学 2022-11-09 Gihyun Lee , Max Lein

We characterise the Schatten class $S^p$ properties of commutators $[b,T]$ of singular integrals and pointwise multipliers in a general framework of (quasi-)metric measure spaces. This covers, unifies, and extends a range of previous…

泛函分析 · 数学 2026-05-08 Tuomas Hytönen

We describe boundedness and compactness properties for the operators obtained by the Weyl-Pedersen calculus in the case of the irreducible unitary representations of nilpotent Lie groups that are associated with flat coadjoint orbits. We…

偏微分方程分析 · 数学 2013-10-22 Ingrid Beltita , Daniel Beltita

Let $\Op_t(a)$, for $t\in \mathbf R$, be the pseudo-differential operator $$ f(x) \mapsto (2\pi)^{-n}\iint a((1-t)x+ty,\xi)f(y)e^{i\scal {x-y}\xi} dyd\xi $$ and let $\mathscr I_p$ be the set of Schatten-von Neumann operators of order $p\in…

偏微分方程分析 · 数学 2008-09-09 Ernesto Buzano , Joachim Toft

We develop our earlier approach to the Weyl calculus for representations of infinite-dimensional Lie groups by establishing continuity properties of the Moyal product for symbols belonging to various modulation spaces. For instance, we…

泛函分析 · 数学 2011-02-08 Ingrid Beltita , Daniel Beltita

We establish continuity and Schatten-von Neumann properties for matrix operators with matrices satisfying mixed quasi-norm estimates. These considerations also include the case when the Lebesgue and Schatten parameters are allowed to stay…

泛函分析 · 数学 2016-05-02 Joachim Toft

Let $G$ be a compact Lie group of dimension $n.$ In this work we characterise the membership of classical pseudo-differential operators on $G$ in the trace class ideal $S_{1}(L^2(G)),$ as well as in the setting of the Schatten ideals…

泛函分析 · 数学 2023-01-11 Duván Cardona , Marianna Chatzakou , Michael Ruzhansky , Joachim Toft

We study the Schatten class membership of semicommutative martingale paraproducts and use the transference method to describe Schatten class membership of purely noncommutative martingale paraproducts, especially for CAR algebras and…

泛函分析 · 数学 2024-11-20 Zhenguo Wei , Hao Zhang

We consider modulation space and spaces of Schatten-von Neumann symbols where corresponding pseudo-differential operators map one Hilbert space to another. We prove H\"older-Young and Young type results for such spaces under dilated…

偏微分方程分析 · 数学 2009-02-17 Joachim Toft

As main result, we show that a pseudodifferential operator in the Weyl calculus, whose symbol has compact Fourier support, lies in the Schatten class $\mathcal S^p$ if and only if its symbol lies in the Lebesgue space $L^p$ on phase space.…

经典分析与常微分方程 · 数学 2024-12-19 Detlef Müller

In this paper we present symbolic criteria for invariant operators on compact topological groups $G$ characterising the Schatten-von Neumann classes $S_{r}(L^{2}(G))$ for all $0<r\leq\infty$. Since it is known that for pseudo-differential…

泛函分析 · 数学 2016-02-10 Julio Delgado , Michael Ruzhansky

We consider a periodic self-adjoint pseudo-differential operator $H=(-\Delta)^m+B$, $m>0$, in $\R^d$ which satisfies the following conditions: (i) the symbol of $B$ is smooth in $\bx$, and (ii) the perturbation $B$ has order less than $2m$.…

谱理论 · 数学 2015-05-13 L. Parnovski , A. V. Sobolev

The aim of this article is to prove a Beals type characterization theorem for pseudodifferential operators in Wiener spaces. The definition of pseudodifferential operators in Wiener spaces and a Calder\'on-Vaillancourt type result appear in…

偏微分方程分析 · 数学 2015-07-10 L. Amour , R. Lascar , J. Nourrigat
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