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In this paper, we characterize operator-theoretic properties (boundedness, compactness, and Schatten class membership) of Toeplitz operators with positive measure symbols on weighted Fock-Sobolev spaces of fractional order.

Complex Variables · Mathematics 2014-05-26 Hong Rae Cho , Joshua Isralowitz , Jae-Cheon Joo

In this paper we introduce and study pseudo-differential operators with operator valued symbols on the abstract Heisenberg group $\mathbb{H}(G):=G \times \widehat{G} \times \mathbb{T},$ where $G$ a locally compact abelian group with its…

Functional Analysis · Mathematics 2019-02-27 Aparajita Dasgupta , Vishvesh Kumar

We determine the Schatten class for the compact resolvent of Dirichlet realizations, in unbounded domains, of a class of non-selfadjoint differential operators. This class consists of operators that can be obtained via analytic dilation…

Mathematical Physics · Physics 2014-10-21 Yaniv Almog , Bernard Helffer

We consider special classes of linear bounded operators in Banach spaces and suggest certain operator variant of symbolic calculus. It permits to formulate an index theorem and to describe Fredholm properties of elliptic pseudo-differential…

Functional Analysis · Mathematics 2019-11-20 Vladimir Vasilyev

In [arXiv:0801.0172] we examined a family of periodic Sturm-Liouville problems with boundary and interior singularities which are highly non-self-adjoint but have only real eigenvalues. We now establish Schatten class properties of the…

Spectral Theory · Mathematics 2010-04-15 Lyonell Boulton , Michael Levitin , Marco Marletta

We study the variation of the discrete spectrum of a bounded non-negative operator in a Krein space under a non-negative Schatten class perturbation of order $p$. It turns out that there exist so-called extended enumerations of discrete…

Spectral Theory · Mathematics 2011-12-12 Jussi Behrndt , Leslie Leben , Friedrich Philipp

We characterize Schatten class membership of positive Toeplitz operators defined on the Bergman spaces over the Siegel upper half-space in terms of averaging functions and Berezin transforms in the range of $0<p<\infty$.

Complex Variables · Mathematics 2020-08-13 Jiajia Si

We develop a new refinement of the Kato's inequality and using this refinement we obtain several upper bounds for the numerical radius of a bounded linear operator as well as the product of operators, which improve the well known existing…

Functional Analysis · Mathematics 2024-07-09 Pintu Bhunia , Satyajit Sahoo

We deduce continuity properties for pseudo-differential operators with symbols in quasi-Banach Orlicz modulation spaces when rely on other quasi-Banach Orlicz modulation spaces. In particular we extend certain results in…

Functional Analysis · Mathematics 2022-04-14 Joachim Toft , Rüya Üster

In this paper, we define in an intrinsic way operators on a compact Lie group by means of symbols using the representations of the group. The main purpose is to show that these operators form a symbolic pseudo-differential calculus which…

Representation Theory · Mathematics 2015-03-17 Veronique Fischer

In this paper, we study the boundedness of pseudodifferential operators with symbols in the H\"ormander class $S^0_{\rho,\rho}$ on $\alpha$-modulation spaces $M_{p,q}^{s,\alpha}$, and consider the relation between $\alpha$ and $\rho$. In…

Functional Analysis · Mathematics 2019-02-05 Tomoya Kato , Naohito Tomita

In this work we obtain sharp $L^p$-estimates for pseudo-differential operators on arbitrary graded Lie groups. The results are presented within the setting of the global symbolic calculus on graded Lie groups by using the Fourier analysis…

Analysis of PDEs · Mathematics 2021-05-20 Duván Cardona , Julio Delgado , Michael Ruzhansky

We prove that if a small Hankel operator on the product Hardy space belongs to some Schatten class $S^p$, $p < \infty$, then it has a symbol in product BMO. In other words, the conclusion of Nehari's theorem holds under the hypothesis that…

Functional Analysis · Mathematics 2026-05-05 Konstantinos Bampouras , Karl-Mikael Perfekt

This article provides a deeper study of the Riesz transform commutators associated with the Neumann Laplacian operator $\Delta_N$ on $\mathbb R^n$. Along the line of singular value estimates for Riesz transform commutators established by…

Functional Analysis · Mathematics 2022-10-11 Zhijie Fan , Michael Lacey , Ji Li , Manasa N. Vempati , Brett D. Wick

The purpose of this paper is to establish the theory of stochastic pseudo-differential operators and give its applications in stochastic partial differential equations. First, we introduce some concepts on stochastic pseudo-differential…

Analysis of PDEs · Mathematics 2011-03-02 Xu Liu , Xu Zhang

In this article we study a class of non-Archimedean pseudodifferential operators whose symbols are negative definite functions. We prove that these operators extend to generators of Feller semigroups. In order to study these operators, we…

Probability · Mathematics 2017-12-06 Anselmo Torresblanca-Badillo , W. A. Zúñiga-Galindo

The construction, in [AJN], of a pseudodifferential calculus analogous to the Weyl calculus, in an infinite dimensional setting, required the introduction of convenient classes of symbols. In this article, we proceed with the study of these…

Analysis of PDEs · Mathematics 2016-07-11 Lisette Jager

We consider the boundedness of the multilinear pseudo-differential operators with symbols in the multilinear H\"{o}rmander class $S_{0,0}$. The aim of this paper is to discuss smoothness conditions for symbols to assure the boundedness…

Classical Analysis and ODEs · Mathematics 2022-06-22 Tomoya Kato

Motivated by the recent work of Gimperlein and Goffeng on Calder\'on's commutator on compact Heisenberg type manifolds and the related weak Schatten class estimates, we establish the characterisation of $L^p$ boundedness for Calderon's…

Functional Analysis · Mathematics 2024-10-04 Yanping Chen , Zhenbing Gong , Ji Li , Edward McDonald , Dmitriy Zanin

Smooth pseudodifferential operators on $\mathbb{R}^n$ can be characterized by their mapping properties between $L^p-$Sobolev spaces due to Beals and Ueberberg. In applications such a characterization would also be useful in the non-smooth…

Analysis of PDEs · Mathematics 2015-12-04 Helmut Abels , Christine Pfeuffer
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