The Analysis of Contour Integrals

For any 𝑛, the contour integral 𝑦=cosh𝑛+1𝑥∮𝐶(cosh(𝑧𝑠)/(sinh𝑧−sinh𝑥)𝑛+1𝑑𝑧,𝑠2=−𝜆, is associated with differential equation 𝑑2𝑦(𝑥)/𝑑𝑥2+(𝜆+𝑛(𝑛+1)/cosh2𝑥)𝑦(𝑥)=0. Explicit solutions for 𝑛=1 are obtained. For 𝑛=1, eigenvalues, eigenfunctions, spectral function, and eigenfunction expansions are explored....

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Main Authors: Tanfer Tanriverdi, JohnBryce Mcleod
Format: Article
Language:English
Published: Wiley 2008-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2008/765920
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author Tanfer Tanriverdi
JohnBryce Mcleod
author_facet Tanfer Tanriverdi
JohnBryce Mcleod
author_sort Tanfer Tanriverdi
collection DOAJ
description For any 𝑛, the contour integral 𝑦=cosh𝑛+1𝑥∮𝐶(cosh(𝑧𝑠)/(sinh𝑧−sinh𝑥)𝑛+1𝑑𝑧,𝑠2=−𝜆, is associated with differential equation 𝑑2𝑦(𝑥)/𝑑𝑥2+(𝜆+𝑛(𝑛+1)/cosh2𝑥)𝑦(𝑥)=0. Explicit solutions for 𝑛=1 are obtained. For 𝑛=1, eigenvalues, eigenfunctions, spectral function, and eigenfunction expansions are explored. This differential equation which does have solution in terms of the trigonometric functions does not seem to have been explored and it is also one of the purposes of this paper to put it on record.
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institution Kabale University
issn 1085-3375
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language English
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publisher Wiley
record_format Article
series Abstract and Applied Analysis
spelling doaj-art-d4a94f774d804deb9ee4d5d0dd9e19812025-02-03T01:00:02ZengWileyAbstract and Applied Analysis1085-33751687-04092008-01-01200810.1155/2008/765920765920The Analysis of Contour IntegralsTanfer Tanriverdi0JohnBryce Mcleod1Department of Mathematics, Harran University, Osmanbey Campus, Sanlurfa 63100, TurkeyDepartment of Mathematics, University of Pittsburgh, 301 Thackeray Hall, Pittsburgh, PA 15260, USAFor any 𝑛, the contour integral 𝑦=cosh𝑛+1𝑥∮𝐶(cosh(𝑧𝑠)/(sinh𝑧−sinh𝑥)𝑛+1𝑑𝑧,𝑠2=−𝜆, is associated with differential equation 𝑑2𝑦(𝑥)/𝑑𝑥2+(𝜆+𝑛(𝑛+1)/cosh2𝑥)𝑦(𝑥)=0. Explicit solutions for 𝑛=1 are obtained. For 𝑛=1, eigenvalues, eigenfunctions, spectral function, and eigenfunction expansions are explored. This differential equation which does have solution in terms of the trigonometric functions does not seem to have been explored and it is also one of the purposes of this paper to put it on record.http://dx.doi.org/10.1155/2008/765920
spellingShingle Tanfer Tanriverdi
JohnBryce Mcleod
The Analysis of Contour Integrals
Abstract and Applied Analysis
title The Analysis of Contour Integrals
title_full The Analysis of Contour Integrals
title_fullStr The Analysis of Contour Integrals
title_full_unstemmed The Analysis of Contour Integrals
title_short The Analysis of Contour Integrals
title_sort analysis of contour integrals
url http://dx.doi.org/10.1155/2008/765920
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