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The logarithmic convexity of restrictions of the Beta functions to rays parallel to the main diagonal and the functional equation \[ \phi\left( x+1\right) =\frac{x\left( x+k\right) }{\left( 2x+k+1\right) \left( 2x+k\right) }\phi\left(…

经典分析与常微分方程 · 数学 2015-05-07 Martin Himmel , Janu sz Matkowski

In this present paper, we establish the log-convexity and Tur\'an type inequalities of extended $(p,q)$-beta functions. Also, we present the log-convexity, the monotonicity and Tur\'an type inequalities for extended $(p,q)$-confluent…

经典分析与常微分方程 · 数学 2018-02-27 S. Mubeen , K. S. Nisar , G. Rahman , M. Arshad

The normalized incomplete beta function can be defined either as cumulative distribution function of beta density or as the Gauss hypergeometric function with one of the upper parameters equal to unity. Logarithmic concavity/convexity of…

经典分析与常微分方程 · 数学 2015-09-18 Dmitrii Karp

We consider convexity and monotonicity properties for some functions related to the $q$-gamma function. As applications, we give a variety of inequalities for the $q$-gamma function, the $q$-digamma function $\psi_q(x)$, and the $q$-series.…

数论 · 数学 2019-02-26 Mohamed El Bachraoui , József Sándor

In the paper, after reviewing the history, background, origin, and applications of the functions $\frac{b^{t}-a^{t}}{t}$ and $\frac{e^{-\alpha t}-e^{-\beta t}}{1-e^{-t}}$, we establish sufficient and necessary conditions such that the…

经典分析与常微分方程 · 数学 2014-04-15 Bai-Ni Guo , Feng Qi

The notions of quasiconvexity, Wright convexity and convexity for functions defined on a metric Abelian group are introduced. Various characterizations of such functions, the structural properties of the functions classes so obtained are…

经典分析与常微分方程 · 数学 2020-11-23 Włodzimierz Fechner , Zsolt Páles

The beta distribution is a two-parameter family of probability distributions whose distribution function is the (regularised) incomplete beta function. In this paper, the inverse incomplete beta function is studied analytically as…

经典分析与常微分方程 · 数学 2017-10-27 Dimitris Askitis

This note deals with certain properties of convex functions. We provide results on the convexity of the set of minima of these functions, the behaviour of their subgradient set under restriction, and optimization of these functions over an…

最优化与控制 · 数学 2017-03-21 Miel Sharf , Daniel Zelazo

A considerable amount of literature in the theory of inequality is devoted to the study of Jensen's and Young's inequality. This article presents a number of new inequalities involving the log-convex functions and the geometrically convex…

经典分析与常微分方程 · 数学 2022-02-10 Shigeru Furuichi , Hamid Reza Moradi , Supriyo Dutta

This article presents a theoretical study of uncertainty functionals on general measurable spaces. These functionals are fundamental in experimental design and global sensitivity analysis, where they are used to quantify variability and…

统计理论 · 数学 2026-05-19 Julien Bect , Xujia Zhu

The monotonicity of the Mittag-Leffler function $E_{\alpha}$ with respect to the parameter $\alpha$ is investigated, via some convex ordering properties for related random variables. In particular, it is shown that the mapping…

经典分析与常微分方程 · 数学 2025-12-05 Rui Ferreira , Thomas Simon

Inequalities play an important role in pure and applied mathematics. In particular, Jensen's inequality, one of the most famous inequalities, plays a main role in the study of the existence and uniqueness of initial and boundary value…

经典分析与常微分方程 · 数学 2022-02-09 Yamilet Quintana , José M. Rodríguez , José M. Sigarreta Almira

In this note our aim is to deduce some new monotonicity properties for a special combination of Bessel functions of the first kind by using a recently developed Mittag-Leffler expansion for the derivative of a normalized Bessel function of…

经典分析与常微分方程 · 数学 2016-11-17 Árpád Baricz , Tibor K. Pogány , Róbert Szász

In [Temme N.M., Special functions. An introduction to the classical functions of mathematical physics, A Wiley-Interscience Publication, John Wiley & Sons, Inc., New York, 1996, Section 11.3.3.1] a uniform asymptotic expansion for the…

经典分析与常微分方程 · 数学 2016-10-26 Gergő Nemes , Adri B. Olde Daalhuis

Motivated mainly by certain interesting recent extensions of the Gamma, Beta and hypergeometric functions, we introduce here new extensions of the Beta function, hypergeometric and confluent hypergeometric functions. We systematically…

经典分析与常微分方程 · 数学 2015-02-24 R. K. Parmar , P. Chopra , R. B. Paris

For $\alpha>\beta-1>0$, we obtain two sided inequalities for the moment integral $I(\alpha,\beta)= \int_{\mathbb{R}} |x|^{-\beta}|\sin x|^{\alpha}dx$. These are then used to give the exact asymptotic behavior of the integral as $\alpha \to…

经典分析与常微分方程 · 数学 2017-04-27 Faruk Abi-Khuzam

In the paper, by establishing the monotonicity of some functions involving the sine and cosine functions, the authors provide concise proofs of some known inequalities and find some new sharp inequalities involving the Seiffert,…

经典分析与常微分方程 · 数学 2013-01-29 Wei-Dong Jiang , Feng Qi

Simple inequalities for some integrals involving the modified Bessel functions $I_{\nu}(x)$ and $K_{\nu}(x)$ are established. We also obtain a monotonicity result for $K_{\nu}(x)$ and a new lower bound, that involves gamma functions, for…

经典分析与常微分方程 · 数学 2017-03-21 Robert E. Gaunt

Let $\mathcal{A}$ be a $C^*$-algebra and $\phi:\cA\to L(H)$ be a positive unital map. Then, for a convex function $f:I\to \mathbb{R}$ defined on some open interval and a self-adjoint element $a\in \mathcal{A}$ whose spectrum lies in $I$, we…

泛函分析 · 数学 2007-05-23 Jorge Antezana , Pedro Massey , Demetrio Stojanoff

In the paper, we introduce the generalized convex function on fractal sets of real line numbers and study the properties of the generalized convex function. Based on these properties, we establish the generalized Jensen inequality and…

经典分析与常微分方程 · 数学 2014-06-30 Huixia Mo , Xin Sui , Dongyan Yu