Results 91 to 100 of about 7,133 (231)

A new generalization of the Riemann zeta function and its difference equation

open access: yesAdvances in Difference Equations, 2011
We have introduced a new generalization of the Riemann zeta function. A special case of our generalization converges locally uniformly to the Riemann zeta function in the critical strip.
Qadir Asghar   +2 more
doaj  

On approximation of analytic functions by periodic Hurwitz zeta-functions

open access: yesMathematical Modelling and Analysis, 2019
The periodic Hurwitz zeta-function ζ(s, α; a), s = σ +it, with parameter 0 < α ≤ 1 and periodic sequence of complex numbers a = {am } is defined, for σ > 1, by series sum from m=0 to ∞ am / (m+α)s, and can be continued moromorphically to the whole ...
Violeta Franckevič   +2 more
doaj   +1 more source

The Hurwitz Zeta Function as a Convergent Series

open access: yesRocky Mountain Journal of Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dwilewicz, Roman, Mináč, Ján
openaire   +3 more sources

A discrete version of the Mishou theorem related to periodic zeta-functions

open access: yesMathematical Modelling and Analysis
In the paper, we consider simultaneous approximation of a pair of analytic functions by discrete shifts and of the absolutely convergent Dirichlet series connected to the periodic zeta-function with multiplicative sequence a, and the periodic Hurwitz ...
Aidas Balčiūnas   +2 more
doaj   +1 more source

On the modification of the universality of the Hurwitz zeta-function

open access: yesNonlinear Analysis, 2016
In the paper, the lower limit in the universality inequality for the Hurwitz zeta-function is replaced by an ordinary limit. The cases of continuous and discrete universalities are considered.
Antanas Laurinčikas, Laimonas Meška
doaj   +1 more source

A discrete limit theorem for the periodic Hurwitz zeta-function. II

open access: yesLietuvos Matematikos Rinkinys, 2016
In the paper, we prove a limit theorem of discrete type on the weak convergence of probability measures on the complex plane for the periodic Hurwitz zeta-function.
Audronė Rimkevičienė
doaj   +1 more source

Derivatives of the Hurwitz Zeta function for rational arguments

open access: yesJournal of Computational and Applied Mathematics, 1998
The functional equation for the Hurwitz Zeta function ζ(s,a) is used to obtain formulas for derivatives of ζ(s,a) at negative odd s and rational a. For several of these rational arguments, closed-form expressions are given in terms of simpler transcendental functions, like the logarithm, the polygamma function, and the Riemann Zeta function.
Miller, Jeff, Adamchik, Victor S.
openaire   +2 more sources

Some Relations of the Twisted q-Genocchi Numbers and Polynomials with Weight α and Weak Weight β

open access: yesAbstract and Applied Analysis, 2012
Recently many mathematicians are working on Genocchi polynomials and Genocchi numbers. We define a new type of twisted q-Genocchi numbers and polynomials with weight 𝛼 and weak weight 𝛽 and give some interesting relations of the twisted q-Genocchi ...
J. Y. Kang, H. Y. Lee, N. S. Jung
doaj   +1 more source

The Zeta and Related Functions: Recent Developments

open access: yesJournal of Advanced Engineering and Computation, 2019
The main object of this survey-cum-expository article is to present an overview of some recent developments involving the Riemann Zeta function ζ(s), the Hurwitz (or generalized) Zeta function ζ(s, a), and the Hurwitz-Lerch Zeta function Φ(z, s, a ...
H. M. Srivastava
doaj   +1 more source

Mean Value Properties of the Hurwitz Zeta-Function.

open access: yesMATHEMATICA SCANDINAVICA, 1992
Let \(\zeta^* (s,x) = \zeta (s,x + 1)\), where \(\zeta (s,a)\) \((0 < a \leq 1)\) is the Hurwitz zeta-function. The author proves that \[ \int^ 1_ 0 \left | \zeta^* \Bigl( {1 \over 2} + it, x \Bigr) \right |^ 2 dx = \log \left( {t \over 2 \pi} \right) + \gamma - 2 \text{Re} {\zeta (1/2 + it) \over 1/2 + it} + O \left( {1 \over t} \right), \] where ...
openaire   +3 more sources

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