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We prove some Lambert series which were stated by Gosper without proof or reference. As an application, we shall evaluate integrals involving Ramanujan theta function $\psi(q)$. Furthermore, motivated by Ramanujan's identities for…

Number Theory · Mathematics 2019-01-29 Mohamed El Bachraoui

By generalizing Gessel-Xin's Laurent series method for proving the Zeilberger-Bressoud $q$-Dyson Theorem, we establish a family of $q$-Dyson style constant term identities. These identities give explicit formulas for certain coefficients of…

Commutative Algebra · Mathematics 2007-06-08 Lun Lv , Guoce Xin , Yue Zhou

We show that the series expansions of certain $q$-products have \textit{matching coefficients} with their reciprocals. Several of the results are associated to Ramanujan's continued fractions. For example, let $R(q)$ denote the…

Number Theory · Mathematics 2023-01-26 Nayandeep Deka Baruah , Hirakjyoti Das

Slater's list of Rogers-Ramanujan type identities consists of 130 series-product identities whose analytic proofs rely primarily on Bailey pair techniques. Although these identities play an important role in the theory of $q$-series and…

Number Theory · Mathematics 2026-03-17 Aritram Dhar , Ankush Goswami , Runqiao Li

An analogue of Taylor's formula, which arises by substituting the classical derivative by a divided difference operator of Askey-Wilson type, is developed here. We study the convergence of the associated Taylor series. Our results…

Classical Analysis and ODEs · Mathematics 2007-05-23 José Manuel Marco , Javier Parcet

The aim of the paper is to relate computational and arithmetic questions about Euler's constant $\gamma$ with properties of the values of the $q$-logarithm function, with natural choice of $q$. By these means, we generalize a classical…

Number Theory · Mathematics 2011-11-10 Jonathan Sondow , Wadim Zudilin

Ramanujan recorded five interesting q-series identities in a section that is not as systematically arranged as the other chapters of his second notebook. These five identities do not seem to have acquired enough attention. Recently, Dixit…

Number Theory · Mathematics 2020-11-17 Subhash Chand Bhoria , Pramod Eyyunni , Bibekananda Maji

We present a method for proving q-series identities by combinatorial telescoping, in the sense that one can transform a bijection or a classification of combinatorial objects into a telescoping relation. We shall illustrate this method by…

Combinatorics · Mathematics 2010-09-17 William Y. C. Chen , Qing-Hu Hou , Lisa H. Sun

We study q-integral representations of the q-gamma and the q-beta functions. This study leads to a very interesting q-constant. As an application of these integral representations, we obtain a simple conceptual proof of a family of…

Quantum Algebra · Mathematics 2015-12-18 Alberto De Sole , Victor Kac

In the lecture notes we start off with an introduction to the $q$-hypergeometric series, or basic hypergeometric series, and we derive some elementary summation and transformation results. Then the $q$-hypergeometric difference equation is…

Classical Analysis and ODEs · Mathematics 2018-08-13 Erik Koelink

Ramanujan listed several q-series identities in his lost notebook. The most well known q-series identities are the Rogers-Ramanujan type identities which are first discovered by Rogers and then rediscovered by Ramanujan. In this paper, we…

Number Theory · Mathematics 2025-07-15 Sabi Biswas , Nipen Saikia

In this paper, we extend an expansion formula of Liu to multiple basic hypergeometric series over the root system $A_{n}.$ The usefulness of Liu's expansion formula in special functions and number theory has been shown by Liu and many…

Classical Analysis and ODEs · Mathematics 2023-02-03 Bing He

We obtain connection coefficients between $q$-binomial and $q$-trinomial coefficients. Using these, one can transform $q$-binomial identities into a $q$-trinomial identities and back again. To demonstrate the usefulness of this procedure we…

Quantum Algebra · Mathematics 2009-10-31 S. Ole Warnaar

We establish new transformation formulas involving theta functions and certain bilateral basic hypergeometric series. From these formulas, we construct companion $q$-series for a class of $q$-series such that the asymptotic expansion of…

Number Theory · Mathematics 2026-05-15 Nian Hong Zhou

We gave a simple derivation of density operator with the quantum analysis. We dealt with the functional of a density operator, and applied maximum entropy principle. We obtained easily the density operators for the Tsallis entropy and…

Statistical Mechanics · Physics 2021-09-08 Masamichi Ishihara

By applying the partial derivative operator to several summation formulas for hypergeometric series, we prove several double series for $\pi$ in this paper. Similarly, we also establish several $q$-analogues of them.

Combinatorics · Mathematics 2023-03-16 Guoping Gu , Xiaoxia Wang

We investigate solutions for a particular class of linear equations in dendriform algebras. Motivations as well as several applications are provided. The latter follow naturally from the intimate link between dendriform algebras and…

Combinatorics · Mathematics 2010-10-27 Kurusch Ebrahimi-Fard , Dominique Manchon

Using $q$-series identities and series rearrangement, we establish several extensions of $q$-Watson formulas with two extra integer parameters. Then they and Sears' transformation formula are utilized to derive some generalizations of…

Classical Analysis and ODEs · Mathematics 2023-06-22 Chuanan Wei , Xiaoxia Wang

Generalized numbers, arithmetic operators and derivative operators, grouped in four classes based on symmetry features, are introduced. Their building element is the pair of $q$-logarithm/$q$-exponential inverse functions. Some of the…

General Mathematics · Mathematics 2021-05-05 Ernesto P. Borges , Bruno G. da Costa

Some $q-$analogues of the normal ordering of the operator $(X+sD)^n$ on the polynomials are derived.

Combinatorics · Mathematics 2010-10-19 Johann Cigler