Asymptotics of the Stirling numbers of the first kind revisited: A saddle point approach

Autor: Guy Louchard
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Discrete Mathematics & Theoretical Computer Science, Vol Vol. 12 no. 2 (2010)
Druh dokumentu: article
ISSN: 1365-8050
DOI: 10.46298/dmtcs.501
Popis: Using the saddle point method, we obtain from the generating function of the Stirling numbers of the first kind [n j] and Cauchy's integral formula, asymptotic results in central and non-central regions. In the central region, we revisit the celebrated Goncharov theorem with more precision. In the region j = n - n(alpha); alpha > 1/2, we analyze the dependence of [n j] on alpha.
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