Results 11 to 20 of about 202 (161)

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

Weighted Estimates for Toeplitz Operators Related to Pseudodifferential Operators

open access: yesJournal of Function Spaces, 2016
The authors establish the weighted Lp estimates for a class of pseudodifferential operators for both cases ...
Yan Lin   +3 more
doaj   +1 more source

On L2-Boundedness of h-Pseudodifferential Operators

open access: yesJournal of Function Spaces, 2021
Let Tah be the h-pseudodifferential operators with symbol a. When a∈Sρ,1m and m=nρ−1/2, it is well known that Tah is not always bounded in L2ℝn. In this paper, under the condition ax,ξ∈L∞Sρnρ−1/2ω, we show that Tah is bounded on L2.
Jie Yang
doaj   +1 more source

On efficient quantum block encoding of pseudo-differential operators [PDF]

open access: yesQuantum, 2023
Block encoding lies at the core of many existing quantum algorithms. Meanwhile, efficient and explicit block encodings of dense operators are commonly acknowledged as a challenging problem.
Haoya Li, Hongkang Ni, Lexing Ying
doaj   +1 more source

Bilinear Localization Operators on Modulation Spaces

open access: yesJournal of Function Spaces, 2018
We introduce a class of bilinear localization operators and show how to interpret them as bilinear Weyl pseudodifferential operators. Such interpretation is well known in linear case whereas in bilinear case it has not been considered so far.
Nenad Teofanov
doaj   +1 more source

On the geometry of $Diff(S^1)$-pseudodifferential operators based on renormalized traces.

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
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.
Jean-Pierre Magnot
doaj   +1 more source

Pseudodifferential operators on stratified manifolds [PDF]

open access: yesDifferential Equations, 2007
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 distance to the strata on such manifolds.
Nazaikinskii, V. E.   +2 more
openaire   +2 more sources

On the Algebra of Operators Corresponding to the Union of Smooth Submanifolds

open access: yesСовременная математика: Фундаментальные направления, 2019
For a pair of smooth transversally intersecting submanifolds in some enveloping smooth manifold, we study the algebra generated by pseudodifferential operators and (co)boundary operators corresponding to submanifolds.
D. A. Poluektova   +2 more
doaj   +1 more source

Pseudodifferential operators on α-modulation spaces

open access: yesJournal of Function Spaces and Applications, 2004
We study expansions of pseudodifferential operators from the Hörmander class in a special family of functions called brushlets. We prove that such operators have a sparse representation in a brushlet system.
Lasse Borup
doaj   +1 more source

Pseudodifferential operators with complex arguments and Cauchy problem

open access: yesMathematical Modelling and Analysis, 1996
"Pseudodifferential operators with complex arguments and Cauchy problem." Mathematical Modelling and Analysis, 1(1), p.
J. Dubinskii
doaj   +1 more source

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