Results 1 to 10 of about 2,481 (254)

The Cauchy Integral Operator on the Predual of a Morrey Space [PDF]

open access: yesJournal of Inequalities and Applications, 2010
We show that the Cauchy integral operator is bounded from Hp,φ(R1) (the predual of a Morrey space) to hp,φ(R1) (the local version of Hp,φ(R1)). To prove our theorem we will introduce generalized atoms and consider a variant of “
Jianmiao Ruan, Jiecheng Chen
doaj   +5 more sources

New refinements of the Cauchy–Bunyakovsky inequality [PDF]

open access: yesJournal of Inequalities and Applications, 2023
This paper presents new refinements on the integral form of Cauchy–Schwartz inequality known as Cauchy–Bunyakovsky inequality. It is proved that when we possess a weighted sum of a set of Cauchy–Bunyakovsky inequalities, there are two forms of ...
Saeed Montazeri
doaj   +2 more sources

On Cauchy's Integral Theorem in the Real Plane [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1939
In a rectangle R let p (x, y) and q (x, y) be two continuous functions, and associate with each rectifiable curve C the number \(J(C) = {{\smallint }_{c}}pdx + qdy\). Under which conditions is J the same for any two coterminal curves in R?
Menger Karl
exaly   +4 more sources

On the T(1)-theorem for the Cauchy integral

open access: yesArkiv for Matematik, 2000
The author defines a weaker growth condition for the measure \(\mu\) than the standard doubling condition \(\mu (2D)\leq const\times\mu (D)\) for each disc \(D\), and gives an alternative proof, with respect to two recent proofs, of the \(L^2(\mu )\)-boundedness of the Cauchy integral operator, i.e., by the integral \(\int_{C}^{}| f| ^2d\mu\) (\(T(1)-\)
Joan Verdera
exaly   +3 more sources

Extensions of the Cauchy–Goursat Integral Theorem

open access: yesJournal of Mathematical Analysis and Applications, 2008
Abstract It is natural to conjecture that if a function f is continuous on the closed region determined by a rectifiable 1-cycle Γ and complex-differentiable on the open region then ∫ Γ f = 0 . The main result is an extension of the classical Cauchy–Goursat Theorem: the equality conjectured holds (with no boundary condition on f ′
exaly   +2 more sources

Uniqueness theorems for Cauchy integrals [PDF]

open access: yesPublicacions Matemàtiques, 2008
19 ...
Melnikov, Mark   +2 more
openaire   +5 more sources

HYPERHOLOMORPHIC FUNCTIONS WITH VALUES IN A MODIFIED FORM OF QUATERNIONS

open access: yesПроблемы анализа, 2020
We give the definition of hyperholomorphic pseudocomplex functions, i. e., functions with values in a special form of quaternions, and propose the necessary variables, functions, and Dirac operators to describe the Cauchy integral theorem and the ...
Ji Eun Kim
doaj   +1 more source

Uniqueness of solutions of a generalized Cauchy problem for a system of first order partial functional differential equations [PDF]

open access: yesOpuscula Mathematica, 2009
The paper is concerned with weak solutions of a generalized Cauchy problem for a nonlinear system of first order differential functional equations. A theorem on the uniqueness of a solution is proved. Nonlinear estimates of the Perron type are assumed. A
Milena Netka
doaj   +1 more source

Existence and regularity of solutions for hyperbolic functional differential problems [PDF]

open access: yesOpuscula Mathematica, 2014
A generalized Cauchy problem for quasilinear hyperbolic functional differential systems is considered. A theorem on the local existence of weak solutions is proved.
Zdzisław Kamont
doaj   +1 more source

Mild Solutions of Fractional Integrodifferential Diffusion Equations with Nonlocal Initial Conditions via the Resolvent Family

open access: yesFractal and Fractional, 2023
Fractional integrodifferential diffusion equations play a significant role in describing anomalous diffusion phenomena. In this paper, we study the existence and uniqueness of mild solutions to these equations.
Jia Mu, Zhiyuan Yuan, Yong Zhou
doaj   +1 more source

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