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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

This paper is the first of two papers constructing a calculus of pseudodifferential operators suitable for doing analysis on Q-rank 1 locally symmetric spaces and Riemannian manifolds generalizing these. This generalization is the interior…

Analysis of PDEs · Mathematics 2009-09-07 Daniel Grieser , Eugenie Hunsicker

Given a compact manifold $M$ with boundary $\partial M$, in this paper we introduce a global symbolic calculus of pseudo-differential operators associated to $(M,\partial M)$. The symbols of operators with boundary conditions on $\partial…

Analysis of PDEs · Mathematics 2015-12-23 Julio Delgado , Michael Ruzhansky , Niyaz Tokmagambetov

Let X be a smooth compact manifold with boundary. For smooth foliations on the boundary of X admitting a `resolution' in terms of a fibration, we construct a pseudodifferential calculus generalizing the fibred cusp calculus of Mazzeo and…

Differential Geometry · Mathematics 2011-12-21 Frédéric Rochon

Motivated by index theory for semisimple groups, we study the relationship between the foliation C^*-algebras on manifolds admitting multiple fibrations. Let F_1,...,F_r be a collection of smooth foliations of a manifold X. We impose a…

Functional Analysis · Mathematics 2015-03-17 Robert Yuncken

Related to a semigroup of operators on a metric measure space, we define and study pseudodifferential operators (including the setting of Riemannian manifold, fractals, graphs ...). Boundedness on $L^p$ for pseudodifferential operators of…

Classical Analysis and ODEs · Mathematics 2012-12-12 Frederic Bernicot , Dorothee Frey

This paper encloses a complete and explicit description of the derivations of the Lie algebra D(M) of all linear differential operators of a smooth manifold M, of its Lie subalgebra D^1(M) of all linear first-order differential operators of…

Differential Geometry · Mathematics 2007-05-23 J. Grabowski , N. Poncin

We review recent results on the magnetic pseudo-differential calculus both in symbolic and in $C^*$-algebraic form. We also indicate some applications to spectral analysis of pseudo-differential operators with variable magnetic fields.

Mathematical Physics · Physics 2009-02-04 Viorel Iftimie , Marius Mantoiu , Radu Purice

In this paper we continue the study of spectral properties of Laplacians associated with an arbitrary smooth distribution on a compact manifold, initiated in a previous paper. Under assumption that the singular foliation generated by the…

Differential Geometry · Mathematics 2020-12-08 Yuri A. Kordyukov

This paper provides a toolbox of para-differential calculus on compact Lie groups. The toolbox is based on representation theory of compact Lie groups and contains exact formulas of symbolic calculus. Para-differential operators are…

Analysis of PDEs · Mathematics 2023-10-11 Chengyang Shao

We introduce the holonomy of a singular leaf $L$ of a singular foliation as a sequence of group morphisms from $\pi_n(L)$ to the $\pi_{n-1}$ of the universal Lie $\infty$-algebroid of the transverse foliation of $L$. We include these…

Differential Geometry · Mathematics 2021-12-15 Camille Laurent-Gengoux , Leonid Ryvkin

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

Consider an elliptic self-adjoint pseudodifferential operator $A$ acting on $m$-columns of half-densities on a closed manifold $M$, whose principal symbol is assumed to have simple eigenvalues. Relying on a basis of pseudodifferential…

Analysis of PDEs · Mathematics 2022-01-12 Matteo Capoferri

We consider a specific class of manifolds with singularities, namely, stratified manifolds, and describe a class of pseudodifferential operators (PsiDO) related to differential operators with degeneration of first-order with respect to the…

Analysis of PDEs · Mathematics 2011-11-08 V. Nazaikinskii , A. Savin , B. Sternin

A fundamental result in pseudodifferential theory is the Calder\'on-Vaillancourt theorem, which states that a pseudodifferential operator defined from a H\"ormander symbol of order $0$ defines a bounded operator on $L^2(\mathbb{R}^d)$. In…

Mathematical Physics · Physics 2024-06-04 Gihyun Lee , Max Lein

In this paper, we are interested in the construction of a bilinear pseudodifferential calculus. We define some symbolic classes which contains those of Coifman-Meyer. These new classes allow us to consider operators closely related to the…

Classical Analysis and ODEs · Mathematics 2008-02-21 Frederic Bernicot

We introduce singular subalgebroids of an integrable Lie algebroid, extending the notion of Lie subalgebroid by dropping the constant rank requirement. We lay the bases of a Lie theory for singular subalgebroids: we construct the associated…

Differential Geometry · Mathematics 2021-07-16 Marco Zambon , Iakovos Androulidakis

We produce, on general homogeneous groups, an analogue of the usual H\"ormander pseudodifferential calculus on Euclidean space, at least as far as products and adjoints are concerned. In contrast to earlier works, we do not limit ourselves…

Analysis of PDEs · Mathematics 2008-02-26 Susana Coré , Daryl Geller

The goal of this note is to present some arguments leading to the conjecture that a formally self-adjoint differential operator on a closed manifold is essentially self-adjoint if and only if the Hamiltonian flow of its symbol is complete.…

Analysis of PDEs · Mathematics 2023-05-05 Yves Colin de Verdìère , Corentin Le Bihan

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