Results 11 to 20 of about 25,186 (260)

Pseudo-fractional differential equations and generalized g-Laplace transform

open access: yes, 2021
In this article, we introduce a generalized g-Laplace transform and discuss some essential results of integral transform theory, in particular, involving a ψ-Hilfer pseudo-fractional derivative and function convolution. In this sense, we investigated the
de Oliveira, E. Capelas   +3 more
core   +1 more source

A New Hybrid Method Based on Pseudo Differential Operators and Haar Wavelet to Solve ODEs [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2018
In this paper we present a new and efficient method by combining pseudo differential operators and Haar wavelet to solve the linear and nonlinear differential equations. The present method performs extremely well in terms of efficiency and simplicity.
M.B. Ghaemi   +2 more
doaj   +1 more source

On the boundedness of pseudo-differential operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
In this note, we use the sequence version of Cotlar's lemma and a partition of unity to give a proof of the L2-boundedness of a class of pseudo-differential operators. Introduction and results. Let p(x, 5) be a continuous function on RI x RI. Then, a pseudo-differential operator P with the symbol p(x, 5) is a linear map of CO (Rn) into CO(Rn), defined ...
openaire   +1 more source

KP-KdV Hierarchy and Pseudo-Differential Operators

open access: yesCommunications in Advanced Mathematical Sciences, 2019
The study of KP-KdV equations are the archetype of integrable systems and are one of the most fundamental equations of soliton phenomena and a topic of active mathematical research.
Lesfari Ahmed
doaj   +1 more source

Pseudo-differential operators and equations in a discrete half-space

open access: yesMathematical Modelling and Analysis, 2018
We introduce a digital pseudo-differential operator acting in discrete Sobolev--Slobodetskii spaces and consider pseudo-differential equations with such operators in a discrete half-space.
Alexander V. Vasilyev   +1 more
doaj   +1 more source

Fundamental Results for Pseudo-Differential Operators of Type 1, 1

open access: yesAxioms, 2016
This paper develops some deeper consequences of an extended definition, proposed previously by the author, of pseudo-differential operators that are of type 1 , 1 in Hörmander’s sense. Thus, it contributes to the long-standing problem of creating
Jon Johnsen
doaj   +1 more source

Towards semi-classical analysis for sub-elliptic operators

open access: yesBruno Pini Mathematical Analysis Seminar, 2022
We discuss the recent developments of semi-classical and micro-local analysis in the context of nilpotent Lie groups and for sub-elliptic operators.
Véronique Fischer
doaj   +1 more source

Kadomtsev-Petviashvili hierarchies with non-formal pseudo-differential operators, non-formal solutions, and a Yang-Mills–like formulation

open access: yesPhysics Letters B
We start from the classical Kadomtsev-Petviashvili (KP) hierarchy posed on formal pseudo-differential operators, and we produce new hierarchies of non-linear equations in the context of non-formal pseudo-differential operators lying in the Kontsevich and
Jean-Pierre Magnot, Enrique G. Reyes
doaj   +1 more source

On diffeological principal bundles of non-formal pseudo-differential operators over formal ones

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2023
We describe the structure of diffeological bundle of non formal classical pseudo-differential operators over formal ones, and its structure group. For this, we give results on diffeological principal bundles with (a priori) no local trivialization ...
Jean-Pierre Magnot
doaj   +1 more source

The Dixmier trace and the Wodzicki residue for global pseudo-differential operators on compact manifolds.

open access: yesRevista Integración, 2020
In this note, we announce the results of our investigation on the Dixmier trace and the Wodzicki residue for pseudo-differential operators on compact manifolds.
Duván Cardona, César del Corral
doaj  

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