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Related papers: Schatten-von Neumann classes of integral operators

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We establish uncertainty principles on compact Riemannian manifolds without boundary by combining restriction estimates for orthonormal systems with spectral projection bounds for Laplace-Beltrami and Schr\"odinger operators. Our results…

Analysis of PDEs · Mathematics 2026-05-27 Alex Iosevich , Chamsol Park

Let $T$ be a compact operator on a separable Hilbert space $H$. We show that, for $2\le p<\infty$, $T$ belongs to the Schatten class $S_p$ if and only if $\{\|Tf_n\|\}\in \ell^p$ for \emph{every} frame $\{f_n\}$ in $H$; and for $0<p\le2$,…

Functional Analysis · Mathematics 2013-02-12 Hu Bingyang , Le Hai Khoi , Kehe Zhu

In the first part of the paper we show Weyl type spectral asymptotic formulas for pseudodifferential operators $P_a$ of order $2a$, with type and factorization index $a\in R_+$, restricted to compact sets with boundary; this includes…

Analysis of PDEs · Mathematics 2014-11-04 Gerd Grubb

We establish continuity and Schatten-von Neumann properties for Fourier integral operators with amplitudes in Orlicz modulation spaces, when acting on other Orlicz modulation spaces themselves. The phase functions are non smooth and admit…

Functional Analysis · Mathematics 2026-04-14 Serap Öztop , Rüya Üster , Joachim Toft

We consider Fourier integral operators with symbols in modulation spaces and non-smooth phase functions whose second orders of derivatives belong to certain types of modulation space. We establish continuity and Schatten-von Neumann…

Analysis of PDEs · Mathematics 2014-06-17 Francesco Concetti , Gianluca Garello , Joachim Toft

We consider the difference $f(H_1)-f(H_0)$, where $H_0=-\Delta$ and $H_1=-\Delta+V$ are the free and the perturbed Schr\"odinger operators in $L^2(\mathbb R^d)$, and $V$ is a real-valued short range potential. We give a sharp sufficient…

Spectral Theory · Mathematics 2019-07-08 Rupert L. Frank , Alexander Pushnitski

In this note we study pseudo-multipliers associated to the harmonic oscillator (also called Hermite multipliers) belonging to Schatten classes on $L^2(\mathbb{R}^n)$. We also investigate the spectral trace of these operators.

Functional Analysis · Mathematics 2018-03-22 Duvan Cardona

In this monograph, we formulated the sufficient conditions of the Abel-Lidskii basis property for a sectorial operator. Having studied such an operator class, we strengthened the conditions regarding the semi-angle of the sector and…

Functional Analysis · Mathematics 2024-03-26 Maksim V. Kukushkin

We consider semiclassical Schr\"odinger operators acting in $L^2(\mathbb{R}^d)$ with $d\geq3$. For these operators we establish a sharp spectral asymptotics without full regularity. For the counting function we assume the potential is…

Spectral Theory · Mathematics 2024-09-10 Søren Mikkelsen

We consider Fourier integral operators with symbols in modulation spaces and non-smooth phase functions whose second orders of derivatives belong to certain types of modulation space. We establish continuity and Schatten-von Neumann…

Analysis of PDEs · Mathematics 2008-02-19 Joachim Toft , Francesco Concetti , Gianluca Garello

We prove an extended version of Cordes' lemma concerning trace-class properties of some special pseudo-differential operators. This version of Cordes' lemma is used to improve the results in \cite{Arsu} concerning the Schatten-class…

Functional Analysis · Mathematics 2007-05-23 Gruia Arsu

In this article, we prove the existence of a non-trivial hyperinvariant subspace for a subclass of compact perturbations of scalar multiple of a partial isometry. Later, we illustrate that this class contains several important classes of…

Functional Analysis · Mathematics 2024-09-05 Neeru Bala , Ramesh Golla

We provide Fredholm conditions for compatible differential operators on certain Lie manifolds (that is, on certain possibly non-compact manifolds with nice ends). We discuss in more detail the case of manifolds with cylindrical, hyperbolic,…

Analysis of PDEs · Mathematics 2023-08-14 Ivan Beschastnyi , Catarina Carvalho , Victor Nistor , Yu Qiao

Let $\X\simeq G/K$ be a Riemannian symmetric space of non-compact type, $\widetilde \X$ its Oshima compactification, and $(\pi,\mathrm{C}(\widetilde \X))$ the regular representation of $G$ on $\widetilde \X$. We study integral operators on…

Differential Geometry · Mathematics 2011-02-25 Aprameyan Parthasarathy , Pablo Ramacher

We introduce a classification of simple, regular, closed symmetric operators with deficiency indices (1,1) according to a geometric criterion that extends the classical notions of entire operators and entire operators in the generalized…

Mathematical Physics · Physics 2015-06-11 Luis O. Silva , Julio H. Toloza

For a second order operator on a compact manifold satisfying the strong H\"ormander condition, we give a bound for the spectral gap analogous to the Lichnerowicz estimate for the Laplacian of a Riemannian manifold. We consider a wide class…

Differential Geometry · Mathematics 2018-05-24 Stine Marie Berge , Erlend Grong

We study the Rarita-Schwinger operator on compact Riemannian spin manifolds. In particular, we find examples of compact Einstein manifolds with positive scalar curvature where the Rarita-Schwinger operator has a non-trivial kernel. For…

Differential Geometry · Mathematics 2019-02-20 Yasushi Homma , Uwe Semmelmann

This article is devoted to the study of the Schatten class membership of commutators involving singular integral operators. We utilize martingale paraproducts and Hyt\"{o}nen's dyadic martingale technique to obtain sufficient conditions on…

Functional Analysis · Mathematics 2024-11-14 Zhenguo Wei , Hao Zhang

We provide a precise description of the bottom of the spectrum in the semiclassical limit of a harmonic-type Schr\"odinger operator with an inverse square potential. By exploiting the connection between the eigenfunctions of these operators…

Spectral Theory · Mathematics 2026-04-13 Roman Vanlaere

Self-adjoint Schr\"odinger operators with $\delta$ and $\delta'$-potentials supported on a smooth compact hypersurface are defined explicitly via boundary conditions. The spectral properties of these operators are investigated, regularity…

Spectral Theory · Mathematics 2013-02-18 Jussi Behrndt , Matthias Langer , Vladimir Lotoreichik