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In this paper, we present first results of our investigation regarding symbolic pseudo-differential calculi on nilpotent Lie groups. On any graded Lie group, we define classes of symbols using difference operators. The operators are…

Functional Analysis · Mathematics 2015-10-16 Veronique Fischer , Michael Ruzhansky

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

In this work we study some general classes of pseudodifferential operators whose symbols are defined in terms of phase space estimates.

Operator Algebras · Mathematics 2007-05-23 Johannes Sjoestrand

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,…

Mathematical Physics · Physics 2022-10-13 Giuseppe De Nittis , Max Lein , Marcello Seri

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

The aim of this work is to develop a global calculus for pseudo-differential operators acting on suitable algebras of generalized functions. In particular, a condition of global hypoellipticity of the symbols gives a result of regularity…

Analysis of PDEs · Mathematics 2007-05-23 Claudia Garetto

This study is an attempt at generalizing the class of partially hypoelliptic differential operators to a class of pseudodifferential operators, Symbol ideals are formed on the set of lineality and we discuss suitable topologies that allow…

Analysis of PDEs · Mathematics 2015-08-10 Tove Dahn

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 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

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

A symbolic calculus for a pseudo-differential operators acting on sections of a homogeneous vector bundle over a compact homogeneous space $G/H$ with compact $G$ and $H$ is developed. We realize the symbol of a pseudo-differential operator…

Analysis of PDEs · Mathematics 2019-12-17 Mitsuru Wilson

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

A generalization of differential operators are pseudodifferential operators which are used for reasoning about partial differential equations with variable coefficients. A lot of useful properties about classical pseudodifferential…

Analysis of PDEs · Mathematics 2013-11-11 Dominik Köppl

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 note we study the analytical index of pseudo-differential operators by using the notion of (infinite dimensional) operator-valued symbols (in the sense of Ruzhansky and Turunen). Our main tools will be the McKean-Singer index…

Differential Geometry · Mathematics 2018-08-28 Duván Cardona

Mixed-norm Lebesgue spaces found their place in the study of some questions in the theory of partial differential equations, as can be seen from recent interest in the continuity of certain classes of pseudodifferential operators on these…

Analysis of PDEs · Mathematics 2022-07-06 Ivan Ivec

On filtered manifolds one can define a different notion of order for the differential operators. In this paper, we use generalized fixed point algebras to construct a pseudodifferential extension that reflects this behaviour. In the…

Operator Algebras · Mathematics 2025-01-13 Eske Ewert

We show the existence of fundamental solutions for p-adic pseudo-differential operators with polynomial symbols.

Mathematical Physics · Physics 2016-09-07 W. A. Zuniga-Galindo

We introduce some general classes of pseudodifferential operators with symbols admitting exponential type growth at infinity and we prove mapping properties for these operators on Gelfand-Shilov spaces both in the quasi-analytic and in the…

Functional Analysis · Mathematics 2016-01-21 Marco Cappiello , Joachim Toft

We introduce an abstract theory of the principal symbol mapping for pseudodifferential operators extending the results of a preceding paper and providing a simple algebraic approach to the theory of pseudodifferential operators in settings…

Operator Algebras · Mathematics 2018-06-20 Fedor Sukochev , Edward McDonald , Dmitriy Zanin
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