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In this paper, we initiate a generous amount of new-found general theorems for explicit evaluations of product of the theta functions $b_{m, n}$ using Kronecker's limit formula and other various novel explicit evaluations that were…

Number Theory · Mathematics 2021-12-14 D. J. Prabhakaran , N. Jayakumar , K. Ranjithkumar

A simple analytic approach to the evaluation of the eigenvalues and eigenvectors f_n of the 5D discrete number operator N_5 is formulated. This approach is essentially based on the symmetry of the intertwining operators with respect to the…

Mathematical Physics · Physics 2025-01-03 Natig Atakishiyev

This paper provides a survey of particular values of Ramanujan's theta function $\varphi(q)=\sum_{n=-\infty}^{\infty}q^{n^2}$, when $q=e^{-\pi\sqrt{n}}$, where $n$ is a positive rational number. First, descriptions of the tools used to…

Number Theory · Mathematics 2022-12-23 Bruce C. Berndt , Örs Rebák

The zeta function attached to a finite complex $X_\Gamma$ arising from the Bruhat-Tits building for $\PGL_3(F)$ was studied in \cite{KL}, where a closed form expression was obtained by a combinatorial argument. This identity can be…

Number Theory · Mathematics 2012-09-26 Ming-Hsuan Kang , Wen-Ching Winnie Li , Chian-Jen Wang

Presented are polynomial identities which imply generalizations of Euler and Rogers--Ramanujan identities. Both sides of the identities can be interpreted as generating functions of certain restricted partitions. We prove the identities by…

High Energy Physics - Theory · Physics 2009-10-28 Omar Foda , Yas-Hiro Quano

In this article, we derive meromorphic continuation of multiple Lerch zeta functions by generalising an elegant identity of Ramanujan. Further, we describe the set of all possible singularities of these functions. Finally, for the multiple…

Number Theory · Mathematics 2017-06-20 Sanoli Gun , Biswajyoti Saha

The main goal of this article is to present an elementary proof of Ramanujan's identity for odd zeta values. Our proof solely relies on a Mittag-Leffler type expansion for hyperbolic cotangent function and Euler's identity for even zeta…

Number Theory · Mathematics 2022-02-04 Sarth Chavan

On page 206 in his lost notebook, Ramanujan recorded an incomplete septic theta function identity. Motivated by the completion of this identity by the second author, we offer cubic and quintic analogues. Using the theory generated by these…

Number Theory · Mathematics 2025-06-03 Bruce C. Berndt , Örs Rebák

Previously, we proved an identity for theta functions of degree eight, and several applications of it were also discussed. This identity is a natural extension of the addition formula for the Weierstrass sigma-function. In this paper we…

Number Theory · Mathematics 2021-05-03 Zhi-Guo Liu

We revisit old conjectures of Fermat and Euler regarding representation of integers by binary quadratic form x^2+5y^2. Making use of Ramanujan's_1\psi_1 summation formula we establish a new Lambert series identity for…

Number Theory · Mathematics 2007-05-23 Alexander Berkovich , Hamza Yesilyurt

Liu established an addition formula for the Jacobian theta function by using the theory of elliptic functions. From this addition formula he obtained the Ramanujan cubic theta function identity, Winquist's identity, a theta function…

Number Theory · Mathematics 2018-06-20 Bing He , Hongcun Zhai

We show that the eighth power of the Jacobi triple product is a Jacobi--Eisenstein series of weight $4$ and index $4$ and we calculate its Fourier coefficients. As applications we obtain explicit formulas for the eighth powers of…

Number Theory · Mathematics 2017-10-30 Valery Gritsenko , Haowu Wang

In this series of seven papers, predominantly by means of elementary analysis, we establish a number of identities related to the Riemann zeta function. Whilst this paper is mainly expository, some of the formulae reported in it are…

History and Overview · Mathematics 2008-02-18 Donal F. Connon

Expressions for a family of integrals involving the Hurwitz zeta function are established using standard properties of the Fourier transform.

Number Theory · Mathematics 2015-12-23 Alexander E Patkowski

In this article we study properties of Ramanujan's mock theta functions that can be expressed in Lerch sums. We mainly show that each Lerch sum is actually the integral of a Jacobian theta function (here we show that for $\vartheta_3(t,q)$…

General Mathematics · Mathematics 2019-08-02 N. D. Bagis

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

The non-trivial zeros of the Riemann zeta function and the prime numbers can be plotted by a modified von Mangoldt function. The series of non-trivial zeta zeros and prime numbers can be given explicitly by superposition of harmonic waves.…

General Mathematics · Mathematics 2017-12-25 Levente Csoka

Eisenstein series play an important role in the theory of modular forms and have profound connections with $q$-series identities, partition theory, and special functions. Likewise, Ramanujan's mock theta functions, originally introduced in…

Number Theory · Mathematics 2026-01-19 Shruthi C. Bhat , B. R. Srivatsa Kumar

Ramanujan studied the analytic properties of many $q$-hypergeometric series. Of those, mock theta functions have been particularly intriguing, and by work of Zwegers, we now know how these curious $q$-series fit into the theory of…

Number Theory · Mathematics 2011-09-30 Kathrin Bringmann , Amanda Folsom , Robert C. Rhoades

On the one hand the Fermi-Dirac and Bose-Einstein functions have been extended in such a way that they are closely related to the Riemann and other zeta functions. On the other hand the Fourier transform representation of the gamma and…

Mathematical Physics · Physics 2011-04-25 Asifa Tassaddiq , Asghar Qadir