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In this article, we develop a calculus of Shubin type pseudodifferential operators on certain non-compact spaces, using a groupoid approach similar to the one of van Erp and Yuncken. More concretely, we consider actions of graded Lie groups…

Analysis of PDEs · Mathematics 2025-01-13 Eske Ewert , Philipp Schmitt

We broaden the domain of the Fourier transform to contain all distributions without using the Paley-Wiener theorem and devise a new weak formulation built upon this extension. This formulation is applicable to evolution equations involving…

Analysis of PDEs · Mathematics 2025-09-16 Jae-Hwan Choi , Ildoo Kim

Any bounded linear operator $ T $ on $ L^2(\mathbb{R}^n) $ gives rise to the operator $ S= B \circ T \circ B^\ast $ on the Fock space $ \mathcal{F}(\C^n) $ where $ B $ is the Bargmann transform. In this article we identify those $ S $ which…

Functional Analysis · Mathematics 2023-04-04 Sundaram Thangavelu

This paper completes the construction of arbitrary order conformally invariant differential operators in higher spin spaces. Jan Slov\'{a}k has classified all conformally invariant differential operators on locally conformally flat…

Differential Geometry · Mathematics 2016-12-07 Chao Ding , Raymond Walter , John Ryan

As announced in [12], we develop a calculus of Fourier integral G-operators on any Lie groupoid G. For that purpose, we study convolability and invertibility of Lagrangian conic submanifolds of the symplectic groupoid T * G. We also…

Differential Geometry · Mathematics 2016-01-06 Jean-Marie Lescure , Stéphane Vassout

We study some classes of symmetric operators for the discrete series representations of the quantum algebra U_q(su_{1,1}), which may serve as Hamiltonians of various physical systems. The problem of diagonalization of these operators…

Quantum Algebra · Mathematics 2007-05-23 N. M. Atakishiyev , A. U. Klimyk

The spaces of higher-order differential operators (in Dimension 1|2), which are modules over the stringy Lie superalgebra K(2), are isomorphic to the corresponding spaces of symbols as orthosymplectic modules in non resonant cases. Such an…

Mathematical Physics · Physics 2011-06-29 Najla Mellouli

For a large class of semiclassical pseudodifferential operators, including Schr\"odinger operators, $ P (h) = -h^2 \Delta_g + V (x) $, on compact Riemannian manifolds, we give logarithmic lower bounds on the mass of eigenfunctions outside…

Spectral Theory · Mathematics 2009-08-18 Hans Christianson

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 introduce an algebra $\mathcal H$ consisting of difference-reflection operators and multiplication operators that can be considered as a $q=1$ analogue of Sahi's double affine Hecke algebra related to the affine root system of type…

Representation Theory · Mathematics 2007-06-13 Wolter Groenevelt

We consider a class of multiparameter singular Radon integral operators on the Heisenberg group ${\mathbb H}^1$ where the underlying variety is the graph of a polynomial. A remarkable difference with the euclidean case, where Heisenberg…

Classical Analysis and ODEs · Mathematics 2018-08-31 Marco Vitturi , James Wright

If we add a simple rotation term to both the Ornstein-Uhlenbeck semigroup and the definition of the H-derivative, then analogue to the classical Malliavin calculus on the real Wiener space [I. Shigekawa, Stochastic analysis, 2004], we get a…

Probability · Mathematics 2013-11-26 Yong Chen

To supplement the already known classification of traces on classical pseudodifferential operators, we present a classification of traces on the algebras of odd-class pseudodifferential operators of non-positive order acting on smooth…

Operator Algebras · Mathematics 2012-04-24 Carolina Neira Jiménez , Marie Françoise Ouedraogo

In this paper, we give a sharp sparse domination of pseudodifferential operators associated with symbols belonging to the H\"{o}rmander class, and fundamental solutions of dispersive equations. Furthermore, we give boundedness results of…

Functional Analysis · Mathematics 2022-11-28 Ryosuke Yamamoto

We consider bilinear pseudo-differential operators with symbols in the bilinear H\"ormander class, $BS_{\rho, \rho}^m$, $m \in \mathbb{R}$, $0 \leq \rho < 1$. The aim of this paper is to discuss low regularity conditions for symbols to…

Classical Analysis and ODEs · Mathematics 2020-01-15 Tomoya Kato

We prove a symbolic calculus for a class of pseudodifferential operators, and discuss its applications to $L^2$-compactness via a compact version of the $T(1)$ theorem.

Classical Analysis and ODEs · Mathematics 2025-07-18 Árpád Bényi , Tadahiro Oh , Rodolfo H. Torres

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…

Mathematical Physics · Physics 2022-11-09 Gihyun Lee , Max Lein

The main result is that every pseudo-differential operator of type 1,1 and order $d$ is continuous from the Triebel--Lizorkin space $F^d_{p,1}$ to $L_p$, $1\le p<\infty$, and that this is optimal within the Besov and Triebel--Lizorkin…

Analysis of PDEs · Mathematics 2017-02-06 Jon Johnsen

For an operator generating a group on $L^p$ spaces transference results give bounds on the Phillips functional calculus also known as spectral multiplier estimates. In this paper we consider specific group generators which are abstraction…

Functional Analysis · Mathematics 2021-08-25 Himani Sharma

We define a Fourier transform and a convolution product for functions and distributions on Heisenberg--Clifford Lie supergroups. The Fourier transform exchanges the convolution and a pointwise product, and is an intertwining operator for…

Representation Theory · Mathematics 2013-04-16 Alexander Alldridge , Joachim Hilgert , Martin Laubinger
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