English
Related papers

Related papers: A short extension of two of Spira's results

200 papers

In this paper, we give some extensions for Ramanujan's circular summation formula with the mixed products of two Jacobi's theta functions. As some applications, we also obtain many interesting identities of Jacobi's theta functions.

Number Theory · Mathematics 2019-01-29 Ji-Ke Ge , Qiu-Ming Luo

In this paper, the authors present sharp approximations in terms of sine function and polynomials for the so-called Ramanujan constant (or the Ramanujan $R$-function) $R(a)$, by showing some monotonicity, concavity and convexity properties…

Complex Variables · Mathematics 2018-04-23 Song-Liang Qiu , Xiao-Yan Ma , Ti-Ren Huang

We prove that there is a correspondence between Ramanujan-type formulas for 1/\pi, and formulas for Dirichlet L-values. The same method also allows us to resolve certain values of the Epstein zeta function in terms of rapidly converging…

Number Theory · Mathematics 2019-02-20 Jesús Guillera , Mathew Rogers

We establish a new multiplicity lemma for solutions of a differential system extending Ramanujan's classical differential relations. This result can be useful in the study of arithmetic properties of values of Riemann zeta function at odd…

Number Theory · Mathematics 2011-09-02 Evgeniy Zorin

In this paper we obtain some essential generalizations of certain Ramachandra's inequality, i. e. we obtain new lower estimates for the energies of some complicated signals generated by the Riemann zeta-function on the critical line.

Classical Analysis and ODEs · Mathematics 2013-08-02 Jan Moser

We give an elementary proof of some identities that express the squares of Riemann zeta function at integer points in terms of the series involving hyperbolic functions, digamma function, Bernoulli numbers etc. In this version, inaccuracies…

Number Theory · Mathematics 2026-03-24 M. A. Korolev

A simple and elementary derivation of values at integer points for the Riemann's zeta and related functions is reported.

General Mathematics · Mathematics 2010-10-22 Armen Bagdasaryan

We show that an almost trivial inequality for the first and second mean of a random variable can be used to give non-trivial improvements on deep results. As applications we improve on results on lower bounds for the Riemann zeta-function…

Probability · Mathematics 2011-05-10 Jan-Christoph Schlage-Puchta

We study the interplay between recurrences for zeta related functions at integer values, `Minor Corner Lattice' Toeplitz determinants and integer composition based sums. Our investigations touch on functional identities due to Ramanujan and…

Number Theory · Mathematics 2012-04-25 Matthew C. Lettington

We prove some identities, which involve the non-trivial zeros of the Riemann zeta function. From them we derive some convergent asymptotic expansions related to the work by Cram\'er, and also new representations for some arithmetical…

Number Theory · Mathematics 2014-06-20 Jesús Guillera

We very slightly improve the leading constant of the (currently best) proven asymptotic zero-free region of the Riemann zeta-function, by using an easy improvement to a trigonometric polynomial.

Number Theory · Mathematics 2022-10-26 Pace P. Nielsen

In this short research note, we aim to establish an interesting extension of a summation due to Ramanujan.The result is derived with the help of an extension of Gauss's summation theorem available in the literature.

Number Theory · Mathematics 2013-06-25 Arjun K. Rathie

In this paper, we partially extend recent results of Wan concerning the relationship between the zeta functions of a Calabi-Yau hypersurface and its (singular) mirror variety.

Number Theory · Mathematics 2007-05-23 C. Douglas Haessig

A conjectured relation between Ramanujan's asymptotic approximations to the exponential function and the exponential integral is established. The proof involves Stirling numbers, second-order Eulerian numbers, modifications of both of…

Number Theory · Mathematics 2023-02-14 Cormac O'Sullivan

An analysis of the zeta and gamma function is presented, using elementary functions like [] and {}, a general formula for the angle of zeta(1/2 + i*n) is found and the same for the gamma function.

Number Theory · Mathematics 2013-10-30 Simon Plouffe

In this paper, we expand the theory of Weierstrassian elliptic functions by introducing auxiliary zeta functions $\zeta_\lambda$, zeta differences of first kind $\Delta_\lambda$ and second kind $\Delta_{\lambda,\mu}$ where…

Complex Variables · Mathematics 2025-12-29 Efe Gürel

In this paper, we study the relation between the zeta function of a Calabi-Yau hypersurface and the zeta function of its mirror. Two types of arithmetic relations are discovered. This motivates us to formulate two general arithmetic mirror…

Algebraic Geometry · Mathematics 2007-05-23 Daqing Wan

Using elementary methods we find surprising connections between the values of the Riemann Zeta Function over integers and the fractional parts of rational powers, and a connection between the Riemann Zeta Function and the Prime Zeta…

Number Theory · Mathematics 2018-09-18 Tal Barnea

We shall make use of the method of partial fractions to generalize some of Ramanujan's infinite series identities, including Ramanujan's famous formula for $\zeta(2n+1)$, and we shall also give a generalization of the transformation formula…

General Mathematics · Mathematics 2025-01-17 Aung Phone Maw

We study Ramanujan's cubic continued fraction and explicit evaluations of theta-functions

Number Theory · Mathematics 2007-05-23 C. Adiga , T. Kim , M. S. Mahadeva Naika , H. S. Madhusudhan
‹ Prev 1 2 3 10 Next ›