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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

Motivated by the theory of bi-singular pseudodifferential operators, we introduce a two dimensional version of the Adler-Manin trace. Our construction is rather general in the sense that it involves a twist afforded by an algebra…

Analysis of PDEs · Mathematics 2013-03-26 Farzad Fathizadeh , Masoud Khalkhali , Fabio Nicola , Luigi Rodino

In this article, we examine the geometry of a group of Fourier-integral operators, which is the central extension of $Diff(S^1)$ with a group of classical pseudo-differential operators of any order. Several subgroups are considered, and the…

Differential Geometry · Mathematics 2020-07-02 Jean-Pierre Magnot

We consider an algebra $\mathscr A$ of Fourier integral operators on $\mathbb R^n$. It consists of all operators $D: \mathscr S(\mathbb R^n)\to \mathscr S(\mathbb R^n)$ on the Schwartz space $\mathscr S(\mathbb R^n)$ that can be written as…

Operator Algebras · Mathematics 2024-05-29 Anton Savin , Elmar Schrohe

We develop a sharp boundary trace theory in arbitrary bounded Lipschitz domains which, in contrast to classical results, allows "forbidden" endpoints and permits the consideration of functions exhibiting very limited regularity. This is…

Functional Analysis · Mathematics 2022-09-20 Jussi Behrndt , Fritz Gesztesy , Marius Mitrea

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

Using {\it weighted traces} which are linear functionals of the type $$A\to tr^Q(A):=(tr(A Q^{-z})-z^{-1} tr(A Q^{-z}))_{z=0}$$ defined on the whole algebra of (classical) pseudo-differential operators (P.D.O.s) and where $Q$ is some…

Operator Algebras · Mathematics 2007-05-23 A. Cardona , C. Ducourtioux , J. P. Magnot , S. Paycha

We show that the noncommutative residue density, resp. the cut-off regularised integral are the only closed linear, resp. continuous closed linear forms on certain classes of symbols. This leads to alternative proofs of the uniqueness of…

Operator Algebras · Mathematics 2007-06-19 Sylvie Paycha

We study the phenomena that arise when we combine the standard pseudodifferential operators with those operators that appear in the study of some sub-elliptic estimates, and on strongly pseudoconvex domains. The algebra of operators we…

Classical Analysis and ODEs · Mathematics 2014-12-12 Elias M. Stein , Po-Lam Yung

We define a class of discrete operators acting on infinite, finite or periodic sequences mimicking the standard properties of pseudo-differential operators. In particular we can define the notion of order and regularity, and we recover the…

Analysis of PDEs · Mathematics 2021-10-01 Erwan Faou , Benoît Grébert

We investigate the spectral asymptotic behavior of operator-valued classical pseudo-differential operators ($\Psi$DOs) for negative order with symbols taking values in a semifinite von Neumann algebran $\mathcal{M}$ equipped with a normal…

Operator Algebras · Mathematics 2026-05-20 Edward McDonald , Xiao Xiong , Xinyu Zhang

Using a global symbol calculus for pseudodifferential operators on tori, we build a canonical trace on classical pseudodifferential operators on noncommutative tori in terms of a canonical discrete sum on the underlying toroidal symbols. We…

Analysis of PDEs · Mathematics 2014-03-26 Cyril Levy , Carolina Neira Jiménez , Sylvie Paycha

A review is made of the basic tools used in mathematics to define a calculus for pseudodifferential operators on Riemannian manifolds endowed with a connection: esistence theorem for the function that generalizes the phase; analogue of…

Mathematical Physics · Physics 2016-06-22 Giampiero Esposito , George M. Napolitano

We introduce two new classes of pseudo-differential operators on open curves. They correspond via a change of variables to subclasses of the periodic pseudo-differential operators, which respectively stabilize even and odd functions. The…

Numerical Analysis · Mathematics 2019-12-03 Martin Averseng

Starting out from a new description of a class of parameter-dependent pseudodifferential operators with finite regularity number due to G. Grubb, we introduce a calculus of parameter-dependent, poly-homogeneous symbols whose homogeneous…

Analysis of PDEs · Mathematics 2020-04-13 Jörg Seiler

We present in this paper the construction of a pseudodifferential calculus on smooth non-compact manifolds associated to a globally defined and coordinate independant complete symbol calculus, that generalizes the standard…

Functional Analysis · Mathematics 2009-09-07 Cyril Levy

The methods of spectral geometry are useful for investigating the metric aspects of noncommutative geometry and in these contexts require extensive use of pseudo-differential operators. In a foundational paper, Connes showed that, by direct…

Operator Algebras · Mathematics 2018-03-14 Jim Tao

In this work we establish the metric approximation property for Besov spaces defined on arbitrary compact Lie groups. As a consequence of this fact, we investigate trace formulae for nuclear Fourier multipliers on Besov spaces. Finally, we…

Spectral Theory · Mathematics 2016-10-31 Duván Cardona

We construct an algebra of pseudodifferential operators on each groupoid in a class that generalizes differentiable groupoids to allow manifolds with corners. We show that this construction encompasses many examples. The subalgebra of…

funct-an · Mathematics 2008-02-03 Victor Nistor , Alan Weinstein , Ping Xu

In this review we focus on the almost diagonalization of pseudodifferential operators and highlight the advantages that time-frequency techniques provide here. In particular, we retrace the steps of an insightful paper by Gr\"ochenig, who…

Functional Analysis · Mathematics 2020-04-08 S. Ivan Trapasso