Results 21 to 30 of about 88,173 (262)

An analog of the Cauchy formula for certain Beltrami equations

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
The Beltrami differential equations are intrinsic generalizations of the Cauchy–Riemann system in complex analysis. Their solutions generalize holomorphic functions. As known, solutions to many problems of the complex analysis are based on application of
D.B. Katz, B.A. Kats
doaj   +1 more source

The geometric mean is a Bernstein function [PDF]

open access: yes, 2013
In the paper, the authors establish, by using Cauchy integral formula in the theory of complex functions, an integral representation for the geometric mean of $n$ positive numbers.
Li, Wen-Hui, Qi, Feng, Zhang, Xiao-Jing
core   +2 more sources

ON CAUCHY PROBLEM SOLUTION FOR A HARMONIC FUNCTION IN A SIMPLY CONNECTED DOMAIN

open access: yesПроблемы анализа, 2023
Here we present an investigation of the Cauchy problem solvability for the Laplace equation in a simply connected plane domain. The investigation is reduced to solution of two singular integral equations.
E. A. Shirokova, P. N. Ivanshin
doaj  

Monogenic Functions in a Finite-Dimensional Semi-Simple Commutative Algebra

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
We obtain a constructive description of monogenic functions taking values in a finite-dimensional semi-simple commutative algebra by means of holomorphic functions of the complex variable.
Plaksa S. A., Pukhtaievych R. P.
doaj   +1 more source

Sections of the Generating Series of a Solution to a Difference Equation in a Simplicial Cone

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2022
We consider a multidimensional difference equation in a simplicial lattice cone with coefficients from a field of characteristic zero and sections of a generating series of a solution to the Cauchy problem for such equations.
A.P. Lyapin, T. Cuchta
doaj   +1 more source

On explicit and numerical solvability of parabolic initial-boundary value problems

open access: yesBoundary Value Problems, 2006
A homogeneous boundary condition is constructed for the parabolic equation in an arbitrary cylindrical domain ( being a bounded domain, and being the identity operator and the Laplacian) which generates an initial-boundary value problem with an ...
Lepsky Olga, Kozhevnikov Alexander
doaj   +2 more sources

Note on a -Contour Integral Formula of Gasper-Rahman

open access: yesAbstract and Applied Analysis, 2013
We use the -Chu-Vandermonde formula and transformation technique to derive a more general -integral equation given by Gasper and Rahman, which involves the Cauchy polynomial.
Jian-Ping Fang
doaj   +1 more source

Truncated V-fractional Taylor's Formula with Applications

open access: yesTrends in Computational and Applied Mathematics, 2018
In this paper, we present and prove a new truncated V-fractional Taylor's formula using the truncated V-fractional variation of constants formula. In this sense, we present the truncated V-fractional Taylor's remainder by means of V-fractional integral ...
José Vanterler da Costa Sousa   +1 more
doaj   +1 more source

Monogenic functions and harmonic vectors

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2023
We consider special topological vector spaces with a commutative multiplication for some of elements of the spaces and monogenic functions taking values in these spaces.
Sergiy Plaksa
doaj   +1 more source

A Further Generalization of the General Polynomial Transform and its Basic Characteristics and Applications [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2023
In this article , we developed the general polynomial transform into a new transform ( Ahmad - Emad - Murat transform ) , which was expanded by writing a general formula of the Kernel function K ( x , t ) .
Ahmad Issa, Emad Kuffi, Murat Duz
doaj   +1 more source

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