Results 1 to 10 of about 5,895,830 (271)

On the Mishou Theorem for Zeta-Functions with Periodic Coefficients

open access: yesMathematics, 2023
Let a={am} and b={bm} be two periodic sequences of complex numbers, and, additionally, a is multiplicative. In this paper, the joint approximation of a pair of analytic functions by shifts (ζnT(s+iτ;a),ζnT(s+iτ,α;b)) of absolutely convergent Dirichlet ...
Aidas Balčiūnas   +3 more
doaj   +5 more sources

Joint universality of periodic zeta-functions with multiplicative coefficients [PDF]

open access: yesNonlinear Analysis, 2020
The periodic zeta-function is defined by the ordinary Dirichlet series with periodic coefficients. In the paper, joint universality theorems on the approximation of a collection of analytic functions by nonlinear shifts of periodic zeta-functions with ...
Antanas Laurinčikas, Monika Tekorė
doaj   +3 more sources

Joint discrete approximation of a pair of analytic functions by periodic zeta-functions [PDF]

open access: yesMathematical Modelling and Analysis, 2020
In the paper, the problem of simultaneous approximation of a pair of analytic functions by a pair of discrete shifts of the periodic and periodic Hurwitz zeta-function is considered. The above shifts are defined by using the sequence of imaginary parts of
Aidas Balčiūnas   +5 more
doaj   +2 more sources

On the fourth moment of the periodic zeta-function

open access: yesLietuvos Matematikos Rinkinys, 2004
There is not abstract.
Darius Šiaučiūnas   +1 more
doaj   +4 more sources

On the mean square of the periodic zeta-function

open access: yesLietuvos Matematikos Rinkinys, 2003
There is not abstract.
Audrius Kačėnas, Darius Šiaučiūnas
doaj   +5 more sources

Questions around the nontrivial zeros of the Riemann zeta-function. Computations and classifications [PDF]

open access: yesMathematical Modelling and Analysis, 2011
We study the sequence of nontrivial zeros of the Riemann zeta-function with respect to sequences of zeros of other related functions, namely, the Hurwitz zeta-function and the derivative of Riemann's zeta-function.
Ramūnas Garunkštis, Joern Steuding
doaj   +2 more sources

Orbit Growth of Periodic-Finite-Type Shifts via Artin–Mazur Zeta Function

open access: yesMathematics, 2020
The prime orbit and Mertens’ orbit counting functions describe the growth of closed orbits in a discrete dynamical system in a certain way. In this paper, we prove the asymptotic behavior of these functions for a periodic-finite-type shift.
Azmeer Nordin, Mohd Salmi Md Noorani
doaj   +3 more sources

Approximation of Analytic Functions by Shifts of Certain Compositions

open access: yesMathematics, 2021
In the paper, we obtain universality theorems for compositions of some classes of operators in multidimensional space of analytic functions with a collection of periodic zeta-functions.
Darius Šiaučiūnas   +2 more
doaj   +1 more source

Joint universality of periodic zeta-functions with multiplicative coefficients. II

open access: yesNonlinear Analysis, 2021
In the paper, a joint discrete universality theorem for periodic zeta-functions with multiplicative coefficients on the approximation of analytic functions by shifts involving the sequence f kg of imaginary parts of nontrivial zeros of the Riemann zeta ...
Antanas Laurinčikas   +2 more
doaj   +1 more source

On discrete value distribution of certain compositions

open access: yesMathematical Modelling and Analysis, 2019
In the paper, we obtain universality theorems and a lower estimate for the number of zeros for the composition F ζ (s, α; a, b) , where F is an operator in the space of analytic functions satisfying the Lipschitz type condition, and ζ (s, α; a, b) is a ...
Virginija Garbaliauskienė   +2 more
doaj   +1 more source

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