Abstract

In the paper, the authors establish the logarithmic convexity and some inequalities for the extended beta function and, by using these inequalities for the extended beta function, find the logarithmic convexity and the monotonicity for the extended confluent hypergeometric function.

Highlights

  • We find the logarithmic convexity and the monotonicity related to the extended confluent hypergeometric function Φλp(β, γ; z) defined in (1.4)

  • The decreasing property of the function β is equivalent to the inequality

  • This paper is a slightly revised version of the preprint [26]

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Summary

Preliminaries

In [30], the extended beta function B(x, y; p) defined by (1.1) was generalized as. B1p(x, y) = B(x, y; p) and B11(x, y) = B(x, y) It is well known [11, 15] that, when λ ∈ [0, 1], the Mittag-Leffler function Eλ(−w) is completely monotonic on (0, ∞). In [30], the extended confluent hypergeometric function Φp(β, γ; z) defined by (1.2) was generalized as.

Definitions and lemmas
Inequalities for extended beta functions
Inequalities for extended confluent hypergeometric functions
Full Text
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