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Related papers: Ramanujan's $q$-continued fractions

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This is a review of the 5-volumes of Ramanujan's Notebooks, as worked over by Bruce C. Berndt over the last quarter of the XX-th Century. To illustrate how useful Ramanujan's insights could be for anyone who indulges in the wild pleasure of…

History and Overview · Mathematics 2016-09-07 Boris A. Kupershmidt

We derived $q$-continued fractions $X_i(q)$ of order thirty-four and continued fractions $Y_i(q)$ of order sixty-eight from a general continued fraction identity of Ramanujan, where $i=1,2,3,4,5,6,7$ and $8$. We established some…

Number Theory · Mathematics 2026-05-29 Dipika Sarkar , S. N. Fathima

Ramanujan in his second notebook recorded total of seven $P$--$Q$ modular equations involving theta--function $f(-q)$ with moduli of orders 1, 3, 5 and 15. In this paper, modular equations analogous to those recorded by Ramanujan are…

Number Theory · Mathematics 2020-05-12 S. Chandankumar , B. Hemanthkumar

Via the MC-algorithm, in this paper we produce seven continued fraction formulae involving products and quotients of three gamma functions with three parameters, and another is an extension of Entry 34 in Chapter 12 of Ramanujan's second…

Number Theory · Mathematics 2021-11-30 Xiaodong Cao , Yoshio Tanigawa , Wenguang Zhai

The two Rogers-Ramanujan $q$-series \[ \sum_{n=0}^{\infty}\frac{q^{n(n+\sigma)}}{(1-q)\cdots (1-q^n)}, \] where $\sigma=0,1$, play many roles in mathematics and physics. By the Rogers-Ramanujan identities, they are essentially modular…

Number Theory · Mathematics 2016-07-04 Michael J. Griffin , Ken Ono , S. Ole Warnaar

In the present work, we extend current research in a nearly-forgotten but newly revived topic, initiated by P. A. MacMahon, on a generalized notion which relates the divisor sums to the theory of integer partitions and two infinite families…

Number Theory · Mathematics 2024-12-03 Tewodros Amdeberhan , Rupam Barman , Ajit Singh

We prove some new modular identities for the Rogers\textendash Ramanujan continued fraction. For example, if $R(q)$ denotes the Rogers\textendash Ramanujan continued fraction, then…

Number Theory · Mathematics 2024-10-23 Nayandeep Deka Baruah , Pranjal Talukdar

This note is a complement to an article which was published, six years ago, in The Ramanujan Journal (vol. 45.3, 2018). Here, the goal is to fully describe a singular transcendental continued fraction in Q((T^-1)), tied to a particular…

Number Theory · Mathematics 2024-10-01 Alain Lasjaunias

In this paper, we investigate several infinite products with vanishing Taylor coefficients in arihmetic progressions. These infinite products are closely related to the Rogers--Ramanujan continued fraction. Moreover, a handful of new…

Combinatorics · Mathematics 2020-03-31 Shane Chern , Dazhao Tang

We revisit several entries from Ramanujan's notebooks which follow from more elementary arguments than a first glance may suggest. Our goal is to demystify these results through more accessible proofs, while also shining some light on the…

History and Overview · Mathematics 2026-05-12 Zachary P. Bradshaw , C. Vignat

We show, for each $q$-continued fraction $G(q)$ in a certain class of continued fractions, that there is an uncountable set of points on the unit circle at which $G(q)$ diverges in the general sense. This class includes the Rogers-Ramanujan…

Number Theory · Mathematics 2018-12-31 Douglas Bowman , James Mc Laughlin

In a previous paper, we showed the existence of an uncountable set of points on the unit circle at which the Rogers-Ramanujan continued fraction does not converge to a finite value. In this present paper, we generalise this result to a…

Number Theory · Mathematics 2019-01-01 Douglas Bowman , James Mc Laughlin

Ramanujan recorded four reciprocity formulas for the Roger-Ramanujan continued fraction. Two reciprocity formulas each are also associated with the Ramanujan--G\"ollnitz--Gordon continued fraction and a level-13 analog of the…

Number Theory · Mathematics 2019-02-25 Rajeev Kohli

Let $R(q)$ be the Rogers-Ramanujan continued fraction. We give different proofs of two complementary relations for $R(q)$ given by Ramanujan and proved by Watson and Ramanathan. Our proofs only use product expansions for classical Jacobi…

Number Theory · Mathematics 2022-04-19 Sumit Kumar Jha

During the course of verifying the results of Ramanujan on hypergeometric series, Berndt in his notebooks, Part II mentioned corrected forms of two of the Ramanujan's results. The aim of this short research note is to point out that one of…

Complex Variables · Mathematics 2013-02-21 Medhat A. Rakha , Adel K. Ibrahim , Arjun K. Rathie

The aim of this paper is to study the convergence and divergence of the Rogers-Ramanujan and the generalized Rogers-Ramanujan continued fractions on the unit circle. We provide an example of an uncountable set of measure zero on which the…

Number Theory · Mathematics 2015-08-10 Emil-Alexandru Ciolan , Robert Axel Neiss

In this paper, we represent a continued fraction expression of Mathieu series by a continued fraction formula of Ramanujan. As application, we obtain some new bounds for Mathieu series.

Classical Analysis and ODEs · Mathematics 2015-08-04 Xiaodong Cao , Yoshio Tanigawa , Wenguang Zhai

In this paper, we will first summarize known results concerning continued fractions. Then we will limit our consideration to continued fractions of quadratic numbers. The second author described periods and sometimes precise form of…

Combinatorics · Mathematics 2023-08-17 Lubomíra Balková , Aranka Hrušková

The hypergeometric formulae designed by Ramanujan more than a century ago for efficient approximation of $\pi$, Archimedes' constant, remain an attractive object of arithmetic study. In this note we discuss some $q$-analogues of…

Number Theory · Mathematics 2018-05-30 Victor J. W. Guo , Wadim Zudilin

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