ON THE SPACINGS BETWEEN THE SUCCESSIVE ZEROS OF THE LAGUERRE POLYNOMIALS

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TitreON THE SPACINGS BETWEEN THE SUCCESSIVE ZEROS OF THE LAGUERRE POLYNOMIALS
Type de publicationJournal Article
Year of Publication2015
AuteursChretien S, Darses S
JournalPROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY
Volume143
Pagination4383-4388
Date PublishedOCT
Type of ArticleArticle
ISSN0002-9939
Résumé

We propose a simple uniform lower bound on the spacings between the successive zeros of the Laguerre polynomials L-n((alpha)) for all alpha > -1. Our bound is sharp regarding the order of dependency on n and alpha in various ranges. In particular, we recover the orders given in a work of Ahmed, Laforgia and Muldoon (1982) for alpha is an element of (- 1, 1].

DOI10.1090/proc/12574