Results 1 to 10 of about 11,285 (160)

Magnetic Pseudodifferential Operators

open access: yesPublications of the Research Institute for Mathematical Sciences, 2005
In previous papers, a generalization of the Weyl calculus was introduced in connection with the quantization of a particle moving in $\mathbb R^n$ under the influence of a variable magnetic field $B$.
Iftimie, Viorel   +2 more
core   +5 more sources

Classification of Traces and Associated Determinants on Odd-Class Operators in Odd Dimensions [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
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 functions on a ...
Carolina Neira Jiménez   +1 more
doaj   +6 more sources

Estimates of bilinear pseudodifferential operators associated to bilinear Hörmander classes in Besov and Triebel–Lizorkin spaces with variable exponents [PDF]

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we give Leibniz-type estimates of bilinear pseudodifferential operators associated to bilinear Hörmander classes in Besov and Triebel–Lizorkin spaces with variable exponents. To obtain the estimate for Triebel–Lizorkin spaces with variable
Jingshi Xu, Jinlai Zhu
doaj   +2 more sources

The S-Transform of Distributions [PDF]

open access: yesThe Scientific World Journal, 2014
Parseval’s formula and inversion formula for the S-transform are given. A relation between the S-transform and pseudodifferential operators is obtained. The S-transform is studied on the spaces 𝒮(ℝn) and 𝒮′(ℝn).
Sunil Kumar Singh
doaj   +2 more sources

Classes of spatially inhomogeneous pseudodifferential operators. [PDF]

open access: yesProc Natl Acad Sci U S A, 1973
One can obtain sharp information on a pseudodifferential operator p (x,D) by embedding the symbol p in a symbolic calculus specially designed to reflect the behavior of p . We sketch the development of symbolic calculi arising in this connection, and use our results to
Beals R, Fefferman C.
europepmc   +5 more sources

Discrete spectrum of zero order pseudodifferential operators [PDF]

open access: yesOpuscula Mathematica, 2023
We study the rate of convergence of eigenvalues to the endpoints of essential spectrum for zero order pseudodifferential operators on a compact manifold.
Grigori Rozenblum
doaj   +1 more source

Evolution pseudodifferential equations with analytic symbols in spaces of $S$ type

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
A nonlocal multipoint by time problem for an evolution equation with a pseudodifferential operator is studied. This operator is treated as an infinite order differentiation operator in generalized spaces of $S$ type. We consider the case when the initial
V.V. Horodets'kyi, O.V. Martynyuk
doaj   +1 more source

Commutators of Pseudodifferential Operators on Weighted Hardy Spaces

open access: yesJournal of Mathematics, 2022
In this paper, we establish an endpoint estimate for the commutator, b,T, of a class of pseudodifferential operators T with symbols in Hörmander class Sρ,δmRn.
Yu-long Deng
doaj   +1 more source

Semielliptic Pseudodifferential Operators

open access: yesJournal of Functional Analysis, 1995
On étudie la régularité des solutions des problèmes aux limites associés à un opérateur pseudo-différentiel semi-elliptique de la forme \[ P = D^\mu_t + \sum_{1 \leq j \leq \mu} p_j (x,t,D_x) D_t^{\mu - j}, \] \(t \in [0,T)\), \(x \in \omega\) ouvert de \(\mathbb{R}^n\), où \(p_j (x, t,D_x)\) est un opérateur pseudo-différentiel en \(x\), de closse \({\
Artino, R.A., Barrosneto, J.
openaire   +2 more sources

Pseudodifferential operators on $L^p$, Wiener amalgam and modulation spaces [PDF]

open access: yes, 2009
We give a complete characterization of the continuity of pseudodifferential operators with symbols in modulation spaces $M^{p,q}$, acting on a given Lebesgue space $L^r$.
Cordero, Elena, Nicola, Fabio
core   +3 more sources

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