Results 21 to 30 of about 917 (128)

The Mellin Transform of Logarithmic and Rational Quotient Function in terms of the Lerch Function

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
Upon reading the famous book on integral transforms volume II by Erdeyli et al., we encounter a formula which we use to derive a Mellin transform given by ∫0∞xm−1logkax/β2+x2γ+xdx, where the parameters a, k, β, and γ are general complex numbers. This Mellin transform will be derived in terms of the Lerch function and is not listed in current literature
Robert Reynolds   +2 more
wiley   +1 more source

Extended Moreno-García cosine products

open access: yesAIMS Mathematics, 2023
The Moreno-García cosine product is extended to evaluate an extensive number of trigonometric products previously published. The products are taken over finite and infinite domains defined in terms of the Hurwitz-Lerch Zeta function, which can be ...
Robert Reynolds
doaj   +1 more source

A family of incomplete Hurwitz-Lerch zeta functions of two variables [PDF]

open access: yes, 2020
Srivastava, Hari M./0000-0002-9277-8092WOS:000546781400001Inspired essentially by the work [H. M. Srivastava, M. A. Chaudhry and R. P. Agarwal [The incomplete Pochhammer symbols and their applications to hypergeometric and related functions, Integral ...
Sahin, Recep   +2 more
core   +2 more sources

A short note on a extended finite secant series

open access: yesAIMS Mathematics, 2023
In this paper, a summation formula for a general family of a finite secant sum has been extended by making use of a particularly convenient integration contour method.
Robert Reynolds
doaj   +1 more source

Real zeros of Hurwitz–Lerch zeta and Hurwitz–Lerch type of Euler–Zagier double zeta functions [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 2015
AbstractLet 0 < a ⩽ 1, s, z ∈ ${\mathbb{C}}$ and 0 < |z| ⩽ 1. Then the Hurwitz–Lerch zeta function is defined by Φ(s, a, z) ≔ ∑∞n = 0zn(n + a)− s when σ ≔ ℜ(s) > 1. In this paper, we show that the Hurwitz zeta function ζ(σ, a) ≔ Φ(σ, a, 1) does not vanish for all 0 < σ < 1 if and only if a ⩾ 1/2.
openaire   +2 more sources

Twisted Eisenstein series, cotangent‐zeta sums, and quantum modular forms

open access: yesTransactions of the London Mathematical Society, Volume 7, Issue 1, Page 33-48, December 2020., 2020
Abstract We define twisted Eisenstein series Es±(h,k;τ) for s∈C, and show how their associated period functions, initially defined on the upper half complex plane H, have analytic continuation to all of C′:=C∖R⩽0. We also use this result, as well as properties of various zeta functions, to show that certain cotangent‐zeta sums behave like quantum ...
Amanda Folsom
wiley   +1 more source

Around the Lipschitz Summation Formula

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
Boundary behavior of important functions has been an object of intensive research since the time of Riemann. Kurokawa, Kurokawa‐Koyama, and Chapman studied the boundary behavior of generalized Eisenstein series which falls into this category. The underlying principle is the use of the Lipschitz summation formula.
Wenbin Li   +3 more
wiley   +1 more source

A Generalization of the Secant Zeta Function as a Lambert Series

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
Recently, Lalín, Rodrigue, and Rogers have studied the secant zeta function and its convergence. They found many interesting values of the secant zeta function at some particular quadratic irrational numbers. They also gave modular transformation properties of the secant zeta function.
H.-Y. Li   +3 more
wiley   +1 more source

The Lerch Zeta Function II. Analytic Continuation [PDF]

open access: yes, 2010
This is the second of four papers that study algebraic and analytic structures associated with the Lerch zeta function. In this paper we analytically continue it as a function of three complex variables.
Apostol T. M.   +7 more
core   +1 more source

On the generalized Hurwitz-Lerch zeta function and generalized Lambert transform [PDF]

open access: yesJournal of Classical Analysis, 2020
Summary: \textit{R. K. Raina} and \textit{H. M. Srivastava} [Rev. Téc. Fac. Ing., Univ. Zulia 18, No. 3, 301--304 (1995; Zbl 0851.11052)] introduced a generalized Lambert transform. \textit{S. P. Goyal} and \textit{R. K. Laddha} [Gaṇita Sandesh 11, No.
openaire   +1 more source

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