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Related papers: Some double series for $\pi$ and their $q$-analogu…

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With the help of the partial derivative operator and several summation formulas for hypergeometric series, we find three double series for $\pi$. In terms of the operator just stated and several summation formulas for basic hypergeometric…

Combinatorics · Mathematics 2022-10-05 Chuanan Wei , Guozhu Ruan

In terms of the operator method, we prove two conjectural series for $\pi$ of Sun involving harmonic numbers of order two. Furthermore, we also give $q$-analogues of six $\pi$-formulas including the two ones just mentioned.

Number Theory · Mathematics 2023-10-09 Chuanan Wei

In this paper, we present a $q$-analogue of the polynomial reduction which was originally developed for hypergeometric terms. Using the $q$-Gosper representation, we describe the structure of rational functions that are summable when…

Combinatorics · Mathematics 2022-08-02 Rong-Hua Wang , Michael X. X. Zhong

We prove new double summation hypergeometric $q$-series representations for several families of partitions, including those that appear in the famous product identities of G\"ollnitz, Gordon, and Schur. We give several different proofs for…

Number Theory · Mathematics 2014-05-15 George Andrews , Kathrin Bringmann , Karl Mahlburg

In terms of the difference operators, we establish several curious transformation and summation formulas for basic hypergeometric series. When the parameters are specified, they produce $q$-analogues of Ramanujan's three series for 1/$\pi$…

Combinatorics · Mathematics 2019-04-09 Chuanan Wei

We use a new $q$-exponential operator based on the $q^{\pm1}$-derivative $\D_{q^{\pm1}}$ of order 1 to derive summation formulas for bilateral basic hypergeometric series ${}_{0}\psi_{1}$, ${}_{1}\psi_{1}$, ${}_{1}\psi_{2}$, and…

Combinatorics · Mathematics 2025-12-04 Ronald Orozco López

The partial sums of two quartic basic hypergeometric series are investigated by means of the modified Abel lemma on summation by parts. Several summation and transformation formulae are consequently established.

Classical Analysis and ODEs · Mathematics 2009-04-23 Wenchang Chu , Chenying Wang

By employing certain extended classical summation theorems, several surprising \pi and other formulae are displayed.

Number Theory · Mathematics 2012-05-31 Yong Sup Kim , Xiaoxia Wang , Arjun K. Rathie

According to the $q$-series method, a short proof for Hou and Sun's identity, which is the $q$-analogue of a known $\pi$-formula, is offered. Furthermore, $q$-analogues of several other $\pi$-formulas are also established in terms of the…

Combinatorics · Mathematics 2018-10-09 Chuanan Wei

By applying the derivative operator to the corresponding hypergeometric form of a $q$-series transformation due to Andrews [1,Theorem 4], we establish a general harmonic number identity. As the special cases of it, several interesting…

Combinatorics · Mathematics 2011-11-15 Chuanan Wei , Dianxuan Gong

In this paper we prove some new series for $1/\pi$ as well as related congruences. We also raise several new kinds of series for $1/\pi$ and present some related conjectural congruences involving representations of primes by binary…

Number Theory · Mathematics 2017-12-27 Zhi-Wei Sun

From two q-summation formulas we deduce certain series expansion formulas involving the q-gamma function. With these formulas we can give q-analogues of series expansions for certain constants.

Number Theory · Mathematics 2018-09-18 Bing He , Hongcun Zhai

The duality relation of one-variable multiple polylogarithms was proved by Hirose, Iwaki, Sato and Tasaka by means of iterated integrals. In this paper, we give a new proof using the method of connected sums, which was recently invented by…

Number Theory · Mathematics 2022-03-15 Shuji Yamamoto

In this paper, we establish a q-analog of partial fraction decomposition formula. By using formula, we develop new closed form representations of sums of q-harmonic numbers and reciprocal q-binomial coefficients. Moreover, we give explicit…

Number Theory · Mathematics 2017-10-24 Ce Xu

We prove a summation formula for a bilateral series whose terms are products of two basic hypergeometric functions. In special cases, series of this type arise as matrix elements of quantum group representations.

Classical Analysis and ODEs · Mathematics 2007-05-23 Hjalmar Rosengren

Given the growing quantity of proposals and works of basic hypergeometric functions in the scope of $q$-calculus, it is important to introduce a systematic classification of $q$-calculus. Our aim in this article is to investigate certain…

Classical Analysis and ODEs · Mathematics 2025-02-11 Ayman Shehata

Using the theory of Calabi-Yau differential equations we obtain all the parameters of Ramanujan-Sato-like series for $1/\pi^2$ as $q$-functions valid in the complex plane. Then we use these q-functions together with a conjecture to find new…

Number Theory · Mathematics 2012-10-16 Gert Almkvist , Jesús Guillera

In terms of the hypergeometric method, we give the extensions of two known series for $\pi$. Further, other twenty-nine summation formulas for $\pi$, $\pi^2$ and $1/\pi$ with free parameters are also derived in the same way.

Combinatorics · Mathematics 2012-03-27 Chuan Wei , Dianxuan Gong , Jianbo Li

The main aim of the present work is to give some interesting the $q$-analogues of various $q$-recurrence relations, $q$-recursion formulas, $q$-partial derivative relations, $q$-integral representations, transformation and summation…

Classical Analysis and ODEs · Mathematics 2022-07-06 Ayman Shehata

By dividing hypergeometric series representations of the inverse sine by sin^-1 (x) and integrating, new double series representations of integers and constants arise. Binomial coefficients and the sine integral are thus combined in double…

Number Theory · Mathematics 2010-09-17 John M. Campbell
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