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New representations of Catalan's constant obtained from the half hyperbolic secant distribution

Abstract: Derived from the half hyperbolic secant distribution, new expressions and bounds for Catalan's constant are presented. They are obtained by using expressions for the Lorenz curve, the Gini and Theil indices, convolutions, and a mixture of distributions, among other approaches. The new expressions are presented both in terms of integral (simple and double) representation and also as an interesting series representation. In addition, some integral representations of Apéry's constant and Euler numbers are obtained.

 Autoría: Gómez-Déniz E., Sarabia J.M.,

 Fuente: Mathematica Slovaca, 2026, 76(1), 17-34

 Editorial: Walter de Gruyter

 Año de publicación: 2026

 Nº de páginas: 18

 Tipo de publicación: Artículo de Revista

 DOI: 10.1515/ms-2025-1150

 ISSN: 0139-9918,1337-2211

 Proyecto español: PID2021-127989OB-I00

 Url de la publicación: https://doi.org/10.1515/ms-2025-1150

Autoría

EMILIO GOMEZ DENIZ