Results 11 to 20 of about 1,412,303 (334)

Approximation for the gamma function via the tri-gamma function [PDF]

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we present a new sharp approximation for the gamma function via the tri-gamma function. This approximation is fast in comparison with the recently discovered asymptotic series.
Xu You, Xiaocui Li
doaj   +5 more sources

Padé approximant related to asymptotics for the gamma function [PDF]

open access: yesJournal of Inequalities and Applications, 2017
Based on the Padé approximation method, we determine the coefficients a j $a_{j}$ and b j $b_{j}$ ( 1 ≤ j ≤ k $1\leq j\leq k$ ) such that Γ ( x + 1 ) 2 π x ( x / e ) x = x k + a 1 x k − 1 + ⋯ + a k x k + b 1 x k − 1 + ⋯ + b k + O ( 1 x 2 k + 1 ) , x → ∞ ,
Xin Li, Chao-Ping Chen
doaj   +2 more sources

On a (p,k)-analogue of the Gamma function and some associated Inequalities [PDF]

open access: diamondMoroccan Journal of Pure and Applied Analysis, 2016
In this paper, we introduce a new two-parameter deformation of the classical Gamma function, which we call a (p,k)-analogue of the Gamma function. We also provide some identities generalizing those satisfied by the classical Gamma function.
Nantomah K., Prempeh E., Twum S. B.
doaj   +2 more sources

An Extension of Beta Function by Using Wiman’s Function

open access: yesAxioms, 2021
The main purpose of this paper is to study extension of the extended beta function by Shadab et al. by using 2-parameter Mittag-Leffler function given by Wiman.
Rahul Goyal   +3 more
doaj   +1 more source

Monotonicity and inequalities involving the incomplete gamma function

open access: yesJournal of Inequalities and Applications, 2016
In the article, we deal with the monotonicity of the function x → [ ( x p + a ) 1 / p − x ] / I p ( x ) $x\rightarrow[ (x^{p}+a )^{1/p}-x]/I_{p}(x)$ on the interval ( 0 , ∞ ) $(0, \infty)$ for p > 1 $p>1$ and a > 0 $a>0$ , and present the necessary and ...
Zhen-Hang Yang, Wen Zhang, Yu-Ming Chu
doaj   +1 more source

Prediction of Fatigue Cracks Using Gamma Function

open access: yesFatigue of Aircraft Structures, 2023
In the present study it has been endeavored to estimate the fatigue crack propagation in V-notch Charpy specimens of 2024 T351 Al-alloy. For this purpose, a new application of fatigue crack growth (FCG) is developed based on the “Gamma function ...
Moussouni Abdelfetah   +2 more
doaj   +1 more source

On the Multivariate Gamma-Gamma ($\Gamma \Gamma$) Distribution with Arbitrary Correlation and Applications in Wireless Communications [PDF]

open access: yes, 2015
The statistical properties of the multivariate Gamma-Gamma ($\Gamma \Gamma$) distribution with arbitrary correlation have remained unknown. In this paper, we provide analytical expressions for the joint probability density function (PDF), cumulative ...
Dai, Linglong   +3 more
core   +2 more sources

Monotonicity of the incomplete gamma function with applications

open access: yesJournal of Inequalities and Applications, 2016
In the article, we discuss the monotonicity properties of the function x → ( 1 − e − a x p ) 1 / p / ∫ 0 x e − t p d t $x\rightarrow (1-e^{-ax^{p}} )^{1/p}/\int_{0}^{x}e^{-t^{p}}\,dt$ for a , p > 0 $a, p>0$ with p ≠ 1 $p\neq1$ on ( 0 , ∞ ) $(0, \infty ...
Zhen-Hang Yang, Wen Zhang, Yu-Ming Chu
doaj   +1 more source

New Applications of the Bernardi Integral Operator

open access: yesMathematics, 2020
Let A ( p , n ) be the class of f ( z ) which are analytic p-valent functions in the closed unit disk U ¯ = z ∈ C : z ≤ 1 . The expression B − m − λ f ( z ) is defined by using fractional integrals of order λ
Shigeyoshi Owa, H. Özlem Güney
doaj   +1 more source

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