McMahon-Type Asymptotic Expansions of the Zeros of the Coulomb Wave Functions

We derive asymptotic expansions of the large zeros of the Coulomb wave functions and for those of their derivatives. The new expansions have the same form as the McMahon expansions of the zeros of the Bessel functions and reduce to them when a parameter is equal to zero. Numerical tests are provided...

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Bibliographic Details
Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2024
Main Authors: Gil, Amparo, Segura, Javier, Temme, Nico M.
Format: Article
Language:English
Published: Інститут математики НАН України 2024
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/212345
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:McMahon-Type Asymptotic Expansions of the Zeros of the Coulomb Wave Functions. Amparo Gil, Javier Segura and Nico M. Temme. SIGMA 20 (2024), 075, 9 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:We derive asymptotic expansions of the large zeros of the Coulomb wave functions and for those of their derivatives. The new expansions have the same form as the McMahon expansions of the zeros of the Bessel functions and reduce to them when a parameter is equal to zero. Numerical tests are provided to demonstrate the accuracy of the expansions.
ISSN:1815-0659