Results 1 to 10 of about 142 (36)

Uniform convergent expansions of the error function in terms of elementary functions [PDF]

open access: yes, 2023
We derive a new analytic representation of the error function erf z in the form of a convergent series whose terms are exponential and rational functions. The expansion holds uniformly in z in the double sector | arg(±z)| < π/4.
Ferreira, Chelo   +2 more
core   +4 more sources

Geometric properties of normalized imaginary error function [PDF]

open access: yes, 2022
The error function takes place in a wide range in the fields of mathematics, mathematical physics and natural sciences. The aim of the current paper is to investigate certain properties such as univalence and close-to-convexity of normalized imaginary ...
ANALOUEI ADEGANI, Ebrahim   +3 more
core   +2 more sources

Uniform asymptotics for the incomplete gamma functions starting from negative values of the parameters [PDF]

open access: yes, 1996
We consider the asymptotic behavior of the incomplete gamma functions gamma(-a,-z) and Gamma(-a,-z) as a goes to infinity. Uniform expansions are needed to describe the transition area z~a in which case error functions are used as main approximants.
Temme, Nico M.
core   +3 more sources

On an Umbral Point of View of the Gaussian and Gaussian-like Functions [PDF]

open access: yes, 2023
The theory of Gaussian functions is reformulated using an umbral point of view. The symbolic method we adopt here allows an interpretation of the Gaussian in terms of a Lorentzian image function.
Dattoli, Giuseppe   +2 more
core   +1 more source

Extensions of beta and related functions [PDF]

open access: yes, 2022
In this paper, we introduce and investigate a new extension of the beta function by means of an integral operator involving a product of Bessel-Struve kernel functions.
Ali, Musharraf   +2 more
core   +2 more sources

Extended Riemann-Liouville type fractional derivative operator with applications

open access: yesOpen Mathematics, 2017
The main purpose of this paper is to introduce a class of new extended forms of the beta function, Gauss hypergeometric function and Appell-Lauricella hypergeometric functions by means of the modified Bessel function of the third kind.
Agarwal P., Nieto Juan J., Luo M.-J.
doaj   +1 more source

Analytically Continued Hypergeometric Expression of the Incomplete Beta Function [PDF]

open access: yes, 2002
The Incomplete Beta Function is rewritten as a Hypergeometric Function that is the analytic continuation of the conventional form, a generalization of the finite series, which simpifies the Stieltjes transform of powers of a monomial divided by powers of
Straton, Jack C.
core   +2 more sources

Refinements of Some Recent Inequalities for Certain Special Functions

open access: yesAnnales Mathematicae Silesianae, 2019
The aim of this paper is to give some refinements to several inequalities, recently etablished, by P.K. Bhandari and S.K. Bissu in [Inequalities via Hölder’s inequality, Scholars Journal of Research in Mathematics and Computer Science, 2 (2018), no.
Akkouchi Mohamed   +1 more
doaj   +1 more source

Hermite-Hadamard Type Inequalities for convex functions via generalized fractional integral operators

open access: yesTopological Algebra and its Applications, 2016
In this present work, the authors establish a new integral identity involving generalized fractional integral operators and by using this fractional-type integral identity, obtain some new Hermite-Hadamard type inequalities for functions whose first ...
Set Erhan, Gözpinar Abdurrahman
doaj   +1 more source

A note on some reduction formulas for the incomplete beta function and the Lerch transcedent [PDF]

open access: yes, 2020
We derive new reduction formulas for the incomplete beta function and the Lerch transcendent in terms of elementary functions. As an application, we calculate some new integrals.
González-Santander, J. L.
core   +2 more sources

Home - About - Disclaimer - Privacy