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Representations and Inequalities for Generalized Hypergeometric Functions

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An integral representation for the generalized hypergeometric function unifying known representations via generalized Stieltjes, Laplace, and cosine Fourier transforms is found. Using positivity conditions for the weight in this representation, various new facts regarding generalized hypergeometric functions, including complete monotonicity, log-convexity in upper parameters, monotonicity of ratios, and new proofs of Luke’s bounds are established. In addition, two-sided inequalities for the Bessel type hypergeometric functions are derived with the use of their series representations. Bibliography: 22 titles.

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Authors and Affiliations

  1. Far Eastern Federal University, Vladivostok, Russia

    D. B. Karp

  2. Universidad del Atlántico, Barranquilla, Colombia

    D. B. Karp

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  1. D. B. Karp
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Correspondence to D. B. Karp.

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Published in Zapiski Nauchnykh Seminarov POMI, Vol. 429, 2014, pp. 121–139.

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Karp, D.B. Representations and Inequalities for Generalized Hypergeometric Functions. J Math Sci 207, 885–897 (2015). https://doi.org/10.1007/s10958-015-2412-7

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  • DOI: https://doi.org/10.1007/s10958-015-2412-7

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