Results 81 to 90 of about 28,649 (209)

On the taylor expansion of the Lerch zeta-function

open access: yesJournal of Mathematical Analysis and Applications, 1992
The Lerch zeta function is the analytic continuation in the complex \(s\) plane of the series \[ L(x,a,s)=\sum_{n\geq 0}\exp\{2\pi inx\}(n+a)^{- s}, \] where \(x\) and \(a\) are real parameters. Properties of this function are deduced from its Taylor expansion in the parameter \(a\).
openaire   +2 more sources

One estimate related to the periodic zeta-function

open access: yesLietuvos Matematikos Rinkinys, 2010
An estimate for the error term of the fourth moment of the periodic zetafunction is obtained.
Sondra Černigova
doaj   +1 more source

Fourier expansion and integral representation generalized Apostol-type Frobenius–Euler polynomials

open access: yesAdvances in Difference Equations, 2020
The main purpose of this paper is to investigate the Fourier series representation of the generalized Apostol-type Frobenius–Euler polynomials, and using the above-mentioned series we find its integral representation.
Alejandro Urieles   +3 more
doaj   +1 more source

Generalizations of the Lerch zeta function. [PDF]

open access: yes
The Lerch zeta function is a three-variable generalization of the Riemann zeta function and the Hurwitz zeta function. In this thesis, we study generalizations and analogues of the Lerch zeta function. Our approaches proceed along three directions: local,
Ngo, Hieu T.
core  

A certain subclass of univalent meromorphic functions defined by a linear operator associated with the Hurwitz-Lerch zeta function

open access: yesRad Hrvatske akademije znanosti i umjetnosti Matematičke znanosti, 2019
In this paper, we study a linear operator related to Hurwitz-Lerch zeta function and hypergeometric function in the punctured unit disk. A certain subclass of meromorphically univalent functions associated with the above operator defined by the concept ...
F. Ghanim, H. Al-Janaby
semanticscholar   +1 more source

Remark on the Hurwitz-Lerch zeta function [PDF]

open access: yesFixed Point Theory and Applications, 2013
By the Poisson summation formula, relating a function with its Fourier coefficients, the author obtaines the analytic continuation and a functional relation for a certain Lerch zeta function. The author also deduces \textit{T. M. Apostol}'s result [Pac. J. Math. 1, 161--167 (1951; Zbl 0043.07103)] about the Lerch zeta function and a functional relation
openaire   +1 more source

Differential Subordination Results for Certain Integrodifferential Operator and Its Applications

open access: yesAbstract and Applied Analysis, 2012
We introduce an integrodifferential operator Js,b(f) which plays an important role in the Geometric Function Theory. Some theorems in differential subordination for Js,b(f) are used. Applications in Analytic Number Theory are also obtained which give new
M. A. Kutbi, A. A. Attiya
doaj   +1 more source

Value distribution theorems for the Lerch zeta-function.

open access: yes, 2019
The Lerch zeta-function defined, for sigma greater than 1, by the Dirichlet series and by analytic continuation elsewhere, is investigated. The main attention is devoted to the universality of the Lerch zeta-function i.e., to approximation of analytic ...
Mincevič, Asta,
core  

Some Geometric Properties of Integral Operators Proposed by Hurwitz-Lerch Zeta Function

open access: yesJournal of Physics: Conference Series, 2019
In this investigation, new integral (integrodifferential) operators in terms of the Hurwitz-Lerch Zeta Functions (HLZF) are posed. Moreover, convexity properties on new generalized uniformly convex and starlike regular functions subclasses associated ...
H. Al-Janaby, F. Ghanim, M. Darus
semanticscholar   +1 more source

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

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