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233312

On the representation of analytic functions by series of derived bases of polynomials in hyperelliptical regions

Article

Last updated: 03 Jan 2025

Subjects

-

Tags

Mathematics

Abstract

One of the important themes in complex analysis is the expansion of analytic functions by infinite series in a given sequence of bases of polynomials. In the present paper, we investigated the representation of analytic functions in different domains of derived bases of polynomials. The behaviour of the associated representation of whole functions is directly related to determining the convergence properties (effectiveness) of such bases. The representation domains are closed hyperellipses, open hyperellipses, and closed regions surrounding a closed hyperellipse. Also, some results concerning the order of derived bases in hyperellipse are obtained. The results obtained are natural generalisations of the results obtained in hyperspherical regions.

DOI

10.21608/absb.2022.111238.1162

Keywords

Bases of polynomials, Effectiveness, Hyperelliptical regions, Derived bases

Authors

First Name

Mohamed

Last Name

Al-Sheikh

MiddleName

S.

Affiliation

Mathematics department, Faculty of Science, Al-Azhar University, Assiut branch, Egypt.

Email

medoalshekh77@gmail.com

City

-

Orcid

-

First Name

Gamal

Last Name

Hassan

MiddleName

F.

Affiliation

Mathematics department, Faculty of Science, Assiut University, Assiut, Egypt.

Email

gamal.farghali@science.aun.edu.eg

City

-

Orcid

-

First Name

Abd Almonem

Last Name

Ibrahim

MiddleName

M.

Affiliation

Mathematics department, Faculty of Science, Al-Azhar University, Assiut branch, Egypt.

Email

abdelmonem@azhar.edu.eg

City

-

Orcid

-

First Name

Ahmed

Last Name

Zahran

MiddleName

M.

Affiliation

Mathematics department, Faculty of Science, Al-Azhar University, Assiut branch, Egypt.

Email

amzahran@azhar.edu.eg

City

-

Orcid

-

Volume

33

Article Issue

Issue 1-B

Related Issue

36493

Issue Date

2022-06-01

Receive Date

2021-12-15

Publish Date

2022-06-01

Page Start

75

Page End

89

Print ISSN

1110-2535

Online ISSN

2636-3305

Link

https://absb.journals.ekb.eg/article_233312.html

Detail API

https://absb.journals.ekb.eg/service?article_code=233312

Order

7

Type

Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

MainTitle

On the representation of analytic functions by series of derived bases of polynomials in hyperelliptical regions

Details

Type

Article

Created At

22 Jan 2023