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相关论文: Inequalities of extended Beta and extended hyperge…

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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

We find sufficient conditions for log-convexity and log-concavity for the functions of the forms $a\mapsto\sum{f_k}(a)_kx^k$, $a\mapsto\sum{f_k}\Gamma(a+k)x^k$ and $a\mapsto\sum{f_k}x^k/(a)_k$. The most useful examples of such functions are…

经典分析与常微分方程 · 数学 2016-09-20 D. Karp , S. M. Sitnik

In this paper we prove some monotonicity, log--convexity and log--concavity properties for the Volterra and incomplete Volterra functions. Moreover, as consequences of these results, we present some functional inequalities (like Tur\'an…

经典分析与常微分方程 · 数学 2018-11-20 Khaled Mehrez , Sergei M. Sitnik

The paper studies logarithmic convexity and concavity of the generalized hypergeometric function with respect to simultaneous shift of several parameters. We use integral representations and properties of Meijer's $G$ function to prove…

经典分析与常微分方程 · 数学 2016-11-22 S. I. Kalmykov , D. B. Karp

In this paper we prove monotonicity of some ratios of $q$--Kummer confluent hypergeometric and $q$--hypergeometric functions. The results are also closely connected with Tur\'an type inequalities. In order to obtain main results we apply…

经典分析与常微分方程 · 数学 2016-09-20 Khaled Mehrez , Sergei M. Sitnik

In this paper our aim is to present the completely monotonicity and convexity properties for the Wright function. As consequences of these results, we present some functional inequalities. Moreover, we derive the monotonicity and…

经典分析与常微分方程 · 数学 2017-08-03 Khaled Mehrez

We aim to introduce a new extension of beta function and to study its important properties. Using this definition, we introduce and investigate new extended hypergeometric and confluent hypergeometric functions. Further, some hybrid…

经典分析与常微分方程 · 数学 2019-01-23 N. U. Khan , T. Usman , M. Aman

In this paper our aim is to prove some monotonicity and convexity results for the modified Struve function of the second kind by using its integral representation. Moreover, as consequences of these results, we present some functional…

经典分析与常微分方程 · 数学 2015-01-28 Árpád Baricz , Tibor K. Pogány

In this paper our aim is to show some mean value inequalities for the modified Bessel functions of the first and second kinds. Our proofs are based on some bounds for the logarithmic derivatives of these functions, which are in fact…

经典分析与常微分方程 · 数学 2011-12-06 Árpád Baricz , Saminathan Ponnusamy , Matti Vuorinen

Some Tur\'an type inequalities for Struve functions of the first kind are deduced by using various methods developed in the case of Bessel functions of the first and second kind. New formulas, like Mittag-Leffler expansion, infinite product…

经典分析与常微分方程 · 数学 2017-07-14 Árpád Baricz , Saminathan Ponnusamy , Sanjeev Singh

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

This article studies the monotonicity, log-convexity of the modified Lommel functions by using its power series and infinite product representation. Same properties for the ratio of the modified Lommel functions with the Lommel function,…

经典分析与常微分方程 · 数学 2017-04-18 Saiful R Mondal

In 2007, \'A. Baricz put forward a conjecture concerning Tur\'an-type inequalities for Gaussian hypergeometric functions (see Conjecture \ref{ConjA} in Section \ref{Sec1}). In this paper, the authors disprove this conjecture with several…

经典分析与常微分方程 · 数学 2024-08-29 Song-Liang Qiu , Xiao-Yan Ma , Xue-Yan Xiang

In this paper, our aim is to show some mean value inequalities for the Fox-Wright functions, such as Tur\'an--type inequalities, Lazarevi\'c and Wilker--type inequalities. As applications we derive some new type inequalities for…

经典分析与常微分方程 · 数学 2017-08-23 Khaled Mehrez , Sergei M. Sitnik

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

In this paper, we study some properties such as the monotonicity, logarithmically complete monotonicity, logarithmic convexity, and geometric convexity, of the combinations of gamma function and power function. The results we obtain…

经典分析与常微分方程 · 数学 2022-05-26 Peipei Du , Gendi Wang

In this paper some Tur\'an type inequalities for the general Bessel function, monotonicity and bounds for its logarithmic derivative are derived. Moreover we find the series representation and the relative extrema of the Tur\'anian of…

经典分析与常微分方程 · 数学 2015-02-11 Árpád Baricz , Saminathan Ponnusamy , Sanjeev Singh

Some sharp two-sided Tur\'an type inequalities for parabolic cylinder functions and Tricomi confluent hypergeometric functions are deduced. The proofs are based on integral representations for quotients of parabolic cylinder functions and…

经典分析与常微分方程 · 数学 2013-05-06 Árpád Baricz , Mourad E. H. Ismail

In this paper, we investigate the complete monotonicity of some functions involving gamma function. Using the monotonic properties of these functions, we derived some inequalities involving gamma and beta functions. Such inequalities…

经典分析与常微分方程 · 数学 2017-06-08 M. Al-Jararha

In the paper, the authors review origins, motivations, and generalizations of a series of inequalities involving several exponential functions and sums, establish three new inequalities involving finite exponential functions and sums by…

经典分析与常微分方程 · 数学 2020-08-26 Feng Qi , Bai-Ni Guo
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