Results 21 to 30 of about 148,763 (276)

Codomains for the Cauchy-Riemann and Laplace operators in ℝ2

open access: yesJournal of Function Spaces and Applications, 2008
A codomain for a nonzero constant-coefficient linear partial differential operator P(∂) with fundamental solution E is a space of distributions T for which it is possible to define the convolution E*T and thus solving the equation P(∂)S=T.
Lloyd Edgar S. Moyo
doaj   +1 more source

Some Subordination Results Defined by Using the Symmetric q-Differential Operator for Multivalent Functions

open access: yesAxioms, 2023
In this article, we use the concept of symmetric q-calculus and convolution in order to define a symmetric q-differential operator for multivalent functions. This operator is an extension of the classical Ruscheweyh differential operator.
Saima Noor   +2 more
doaj   +1 more source

Meda Inequality for Rearrangements of the Convolution on the Heisenberg Group and Some Applications

open access: yesJournal of Inequalities and Applications, 2009
The Meda inequality for rearrangements of the convolution operator on the Heisenberg group ℍn is proved. By using the Meda inequality, an O'Neil-type inequality for the convolution is obtained. As applications of these results, some sufficient
V. S. Guliyev   +3 more
doaj   +2 more sources

Optimal codomains for the Laplace operator and the product Laplace operator

open access: yesJournal of Function Spaces and Applications, 2007
An optimal codomain for an operator P (∂) with fundamental solution E, is a maximal space of distributions T for which it is possible to define the convolution E*T and thus to solve the equation P (∂)S=T.
Josefina Alvarez, Lloyd Edgar S. Moyo
doaj   +1 more source

The problem of trigonometric Fourier series multipliers of classes in λp,q spaces

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
In this article, we consider weighted spaces of numerical sequences λp,q, which are defined as sets of sequences a = {ak}∞k=1, for which the norm ||a||λp,q := (∞Σk=1|ak|qkq/p −1)1/q < ∞ is finite. In the case of non-increasing sequences, the norm of the
A. Bakhyt, N.T. Tleukhanova
doaj   +1 more source

The Continuous Wavelet Transform for a q-Bessel Type Operator

open access: yesInternational Journal of Analysis and Applications, 2022
In this paper, we consider a differential operator on - By accomplishing harmonic analysis tools with respect to the operator we study some definitions and properties of q-Bessel continuous wavelet transform.
C.P. Pandey, Jyoti Saikia
doaj   +1 more source

Triebel--Lizorkin space estimates for multilinear operators of sublinear operators [PDF]

open access: yes, 2003
In this paper, we obtain the continuity for some multilinear operators related to certain non-convolution operators on the Triebel--Lizorkin space. The operators include Littlewood--Paley operator and Marcinkiewicz operator.Comment: 15 pages, no figures,
Lanzhe, Liu
core   +2 more sources

On Fekete–Szegö Problems for Certain Subclasses of Analytic Functions Defined by Differential Operator Involving q-Ruscheweyh Operator

open access: yesJournal of Function Spaces, 2020
In this paper, we define a new derivative operator involving q-Ruscheweyh differential operator using convolution. Using this new operator, we introduce two new classes of analytic functions and obtain the Fekete–Szegö inequalities.
Abdullah Alsoboh, Maslina Darus
doaj   +1 more source

A_{p1,q1}^{p2,q2}(G,w) Banach Uzayı Üzerindeki Bazı Yeni Sonuçlar

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
G ünimodüler yerel kompakt grup ve p=min{p1,p2} olmak üzere w∈Bp olsun. Bu çalışmada, A_{p1,q1}^{p2,q2}(G,w) uzayının indislerin değişmesi durumunda kapsama özellikleri incelenmiştir. Ayrıca w ağırlığının bazı özel şartları sağlaması durumunda A_{p1,
Nilay Değirmen
doaj   +1 more source

Banach algebras of pseudodifferential operators and their almost diagonalization [PDF]

open access: yes, 2007
We define new symbol classes for pseudodifferntial operators and investigate their pseudodifferential calculus. The symbol classes are parametrized by commutative convolution algebras.
Gröchenig, Karlheinz   +1 more
core   +3 more sources

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