Results 21 to 30 of about 1,406,358 (336)

Evaluation of the real parts of polylogarithm expressions containing complex arguments via certain logarithmic integrals [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
We consider a polylogarithm expression containing complex arguments, namely š“ŸĀ±(n)=ā„œ(Liā‚™((1±i)/2)). The central notion of the present paper is to evaluate the real parts of š“ŸĀ±(n) for first four orders, specifically n = 1,2,3, and 4, by constructing ...
Narendra Bhandari
doaj   +1 more source

The density structure and star formation rate of non-isothermal polytropic turbulence [PDF]

open access: yes, 2015
The interstellar medium of galaxies is governed by supersonic turbulence, which likely controls the star formation rate (SFR) and the initial mass function (IMF).
Banerjee, Supratik, Federrath, Christoph
core   +2 more sources

On approximating the modified Bessel function of the second kind

open access: yesJournal of Inequalities and Applications, 2017
In the article, we prove that the double inequalities Ļ€ e āˆ’ x 2 ( x + a ) < K 0 ( x ) < Ļ€ e āˆ’ x 2 ( x + b ) , 1 + 1 2 ( x + a ) < K 1 ( x ) K 0 ( x ) < 1 + 1 2 ( x + b ) $$ \frac{\sqrt{\pi}e^{-x}}{\sqrt{2(x+a)}}< K_{0}(x)< \frac{\sqrt{\pi }e^{-x}}{\sqrt ...
Zhen-Hang Yang, Yu-Ming Chu
doaj   +1 more source

On the Nonlinear Integro-Differential Equations

open access: yesFractal and Fractional, 2021
The goal of this paper is to study the uniqueness of solutions of several nonlinear Liouville–Caputo integro-differential equations with variable coefficients and initial conditions, as well as an associated coupled system in Banach spaces.
Chenkuan Li, Joshua Beaudin
doaj   +1 more source

A Short Note on Integral Transformations and Conversion Formulas for Sequence Generating Functions

open access: yesAxioms, 2019
The purpose of this note is to provide an expository introduction to some more curious integral formulas and transformations involving generating functions.
Maxie D. Schmidt
doaj   +1 more source

Completely monotonic functions involving the gamma and $q$-gamma functions [PDF]

open access: yesProceedings of the American Mathematical Society, 2005
The authors provide new examples of logarithmically completely monotonic functions. These examples are ratios of products involving the Gamma function or the \(q\)-Gamma function. As an application of these results new examples of infinitely divisible probability distributions can be obtained.
Grinshpan, Arcadii Z.   +1 more
openaire   +2 more sources

Generalized Extended Matrix Variate Beta and Gamma Functions and Their Applications

open access: yesIngenierĆ­a y Ciencia, 2016
In this article, we define and study generalized forms of extended matrix variate gamma and beta functions. By using a number of results from matrix algebra, special functions of matrix arguments and zonal polynomials we derive a number of properties of ...
Daya K. Nagar   +2 more
doaj   +1 more source

Some Inequalities of Extended Hypergeometric Functions

open access: yesMathematics, 2021
Hypergeometric functions and their inequalities have found frequent applications in various fields of mathematical sciences. Motivated by the above, we set up certain inequalities including extended type Gauss hypergeometric function and confluent ...
Shilpi Jain   +3 more
doaj   +1 more source

Increasing property and logarithmic convexity of functions involving Dirichlet lambda function

open access: yesDemonstratio Mathematica, 2023
In this article, with the help of an integral representation of the Dirichlet lambda function, by means of a monotonicity rule for the ratio of two integrals with a parameter, and by virtue of complete monotonicity and another property of an elementary ...
Qi Feng, Lim Dongkyu
doaj   +1 more source

Some Results of Extended Beta Function and Hypergeometric Functions by Using Wiman’s Function

open access: yesMathematics, 2021
The main aim of this research paper is to introduce a new extension of the Gauss hypergeometric function and confluent hypergeometric function by using an extended beta function.
Shilpi Jain   +4 more
doaj   +1 more source

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