On Joint Universality of the Riemann and Hurwitz Zeta-Functions

Mathematical Notes - In 2007, H. Mishou proved the universality theorem on the joint approximation of a pair of analytic functions by the shifts $$(zeta(s+itau),zeta(s+itau,alpha))$$ of the...     

Universality Theorem for the Iterated Integrals of the Logarithm of the Riemann Zeta-Function

Lithuanian Mathematical Journal - In this paper, we prove the universality theorem for the iterated integrals of the logarithm of the Riemann zeta-function on a line parallel to the real axis.     

On the Zeros of the Riemann Zeta-Function

It is well known that the multiplicity of a complex zero =ß+iof the zeta-function is O(log||). This may be proved by meansof Jensen's formula, as in Titchmarsh [7, Chapter 9]. It mayalso be seen from the formula for the number N(T) of zeros suchthat 0<<T, (1) due to Backlund [1], in which E(T) is a continuous functionsatisfying E(T)=O(1/T) and (2) We assume here that T is not the ordinate of a zero; with appropriatedefinitions of N(T) and S(T) the formula is valid for all T.We have S(T)=O(logT). On the Lindelöf Hypothesis S(T)=o(logT),(Cramér [2]), and on the Riemann Hypothesis (Littlewood [5]). These results are over 70 years old. Because the multiplicity problem is hard, it seems worthwhileto see what can be said about the number of distinct zeros ina short T-interval. We obtain the following result, which isindependent of any unproved hypothesis.     

On the Pair Correlation of Zeros of the Riemann Zeta-Function

To study the distribution of pairs of zeros of the Riemann zeta-function,Montgomery introduced the function where is real and T 2, and ' denote the imaginary parts ofzeros of the Riemann zeta-function, and w(u) = 4/(4 + u²). Assumingthe Riemann Hypothesis, Montgomery proved an asymptotic formulafor F() when || 1, and made the conjecture that F() = 1 + o(1)as T for any bounded with || 1. In this paper we use anapproximation for the prime indicator function together witha new mean value theorem for long Dirichlet polynomials andtails of Dirichlet series to prove that, assuming the GeneralizedRiemann Hypothesis for all Dirichlet L-functions, then for any > 0 we have uniformlyfor and all T T₀(). 1991Mathematics Subject Classification: primary 11M26; secondary11P32.     

Simple Zeros of the Riemann Zeta-Function

Assuming the Riemann Hypothesis, Montgomery showed by meansof his pair correlation method that at least two-thirds of thezeros of Riemann's zeta-function are simple. Later he and Taylorimproved this to 67.25 percent and, more recently, Cheer andGoldston increased the percentage to 67.2753. Here we proveby a new method that if the Riemann and Generalized LindelöofHypotheses hold, then at least 70.3704 percent of the zerosare simple and at least 84.5679 percent are distinct. Our methoduses mean value estimates for various functions defined by Dirichletseries sampled at the zeros of the Riemann zeta-function. 1991Mathematics Subject Classification: 11M26.     

A Joint Limit Theorem for the Riemann Zeta-Function in the Space of Analytic Functions

In this paper, we prove a joint limit theorem for the Riemann zeta-function in the space of analytic functions in the sense of weak convergence of probability measures.     

On the Error Term for the Fourth Moment of the Riemann Zeta-Function

Let E₂(T) denote the error term in the asymptotic formula for^T₀|(+it)|⁴dt. It is proved that there exist constants A>0,B>1 such that for TT₀>0 every interval [T, BT] containspoints T₁, T₂ for which and that ^T₀|E₂(t)|^adt>>T^1+(a/2) for any fixed a1. Theseresults complement earlier results of Motohashi and Ivi that^T₀E₂(t)dt<<T^3/2 and that ^T₀E²₂(t)dt<<T²log^CT forsome C>0. Omega-results analogous to the above ones are obtainedalso for the error term in the asymptotic formula for the Laplacetransform of |(+it)|⁴.     

Universality of the Periodic Hurwitz Zeta-Function with Rational Parameter

The periodic Hurwitz zeta-function, a generalization of the classical Hurwitz zeta-function, is defined by a Dirichlet series with periodic coefficients and depends on a fixed parameter. We show that a wide class of analytic functions is approximated by shifts of a periodic zeta-function with rational parameter.     

Universality of the Riemann zeta-function

In 1975, S.M. Voronin proved the universality of the Riemann zeta-function ζ(s). This means that every non-vanishing analytic function can be approximated uniformly on compact subsets of the critical strip by shifts ζ(s+iτ). In the paper, we consider the functions F(ζ(s)) which are universal in the Voronin sense.     

On the Value Distribution of Hurwitz Zeta-Functions at the Nontrivial Zeros of the Riemann Zeta-Function

We consider the value distribution of Hurwitz zeta-functions at the nontrivial zeros ϱ= β + iγ of the Riemann zeta-function ζ (s):= ζ (s, 1). Using the method of Conrey, Ghosh and Gonek we prove for fixed 0< α< 1 andH ≤T that

On the Periodic Zeta-Function

We consider the periodic zeta-function introduced by B. C. Berndt and L. Schoenfeld. We obtain the asymptotics of the mean square and prove limit theorems in the space of analytic functions for this function.     

On Epstein's Zeta-Function

Let , and let be Epstein's zeta-function of the form Q. It is proved that for |t| > C > 0 one has the estimate

关于ζ函数的积分表示

由Riemannζ函数的函数方程得到Hurwitzζ函数的Hermite公式,再从Hermite公式得到Γ(s)的Binet′s第二表达式,从而由ζ函数推得Γ(s)的性质.     

Joint Universality of Certain Dirichlet Series

Mathematical Notes - In this paper, we define the Dirichlet series $$ \zeta_{u_T j} (s)$$ , $$ j = 1, \dots, r$$ , absolutely converging in the half-plane $$ \operatorname{Re} s&gt; 1/2 $$ and...     

On Statistical Properties of the Lerch Zeta-Function. II

A discrete limit theorem for the Lerch zeta-function with an integer parameter in the space of meromorphic functions is proved.     

On a Joint Limit Distribution of the Riemann Zeta-function in the Space of Analytic Functions

In the paper, the explicit form of the limit measure in a joint limit theorem for the Riemann zeta-function in the space of analytic functions is given.