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Related papers: Holonomic alchemy and series for $1/\pi$

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Recently Z.W.Sun found over hundred conjectured formulas for 1/pi. Many of them were proved by H.H.Chan, J.Wan andW.Zudilin (see [3], [8] in the paper). Here we show that several other formulas in [6] are simple transformations of known…

Number Theory · Mathematics 2011-12-22 Gert Almkvist , Alexander Aycock , appendix by Arne Meurman

Polynomial reduction, designed first for hypergeometric terms, can be used to automatically prove and generate new hypergeometric identities from old ones. In this paper, we extend the reduction method to holonomic sequences. As…

Combinatorics · Mathematics 2022-06-28 Rong-Hua Wang , Michael X. X. Zhong

In this note, we evaluate a series for $1/\pi$ conjectured by Sun. Our proof uses the Cauchy product and hypergeometric transformations. From this result, we derive two additional analogous series for $1/\pi$ involving polynomials of degree…

Number Theory · Mathematics 2026-04-14 Roman Le Lan

We show that a binomial identity arising in the context of the study of series expansions of $1/\pi$ can be seen as an incarnation of Whipples second theorem for hypergeometric series.

Number Theory · Mathematics 2019-07-23 Benjamin Hackl , Helmut Prodinger

A binomial coefficient identity due to Zhi-Wei Sun is the subject of half a dozen recent papers that prove it by various analytic techniques and establish a generalization. Here we give a simple proof that uses weight-reversing involutions…

Combinatorics · Mathematics 2007-05-23 David Callan

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 known identities from hypergeometric series or WZ pairs, we obtain seven series associated with harmonic numbers. Specifically, six of them are Ramanujan-like formulas for $1/\pi$ and the remaining…

Number Theory · Mathematics 2023-07-11 Qinghu Hou , Haihong He , Xiaoxia Wang

We prove some supercongruence and divisibility results on sums involving Domb numbers, which confirm four conjectures of Z.-W. Sun and Z.-H. Sun. For instance, by using a transformation formula due to Chan and Zudilin, we show that for any…

Number Theory · Mathematics 2020-08-18 Ji-Cai Liu

Given a convergent sequence of nodes we present a one-dimensional-holomorphic-function version of the Newton interpolation method of polynomials. It also generalises the Taylor and the Laurent formula. In other words, we present an…

Complex Variables · Mathematics 2012-02-28 Tomasz Sobieszek

In this paper, we will give another proof of Zhi-Wei Sun's three conjectures on Ap\'{e}ry-like sums involving harmonic numbers by proving some identities among special values of multiple polylogarithms.

Number Theory · Mathematics 2022-03-15 Ce Xu , Jianqiang Zhao

We give a proof of two identities involving binomial sums at infinity conjectured by Z-W Sun. In order to prove these identities, we use a recently presented method i.e. we view the series as specializations of generating series and derive…

Combinatorics · Mathematics 2019-08-20 Jakob Ablinger

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

We outline an elementary method for proving numerical hypergeometric identities, in particular, Ramanujan-type identities for $1/\pi$. The principal idea is using algebraic transformations of arithmetic hypergeometric series to translate…

Number Theory · Mathematics 2013-12-03 Jesús Guillera , Wadim Zudilin

A doubly infinite set of series expansion for $1/\pi$ are reported. They follow trivially from a formal expansion for the quotient of the values taken by the gamma function for two (complex) arguments differing by an integer plus one half,…

Number Theory · Mathematics 2019-07-09 J. Sesma

In this work, we establish modular parameterizations for two general formulas for $\frac{1}{\pi}$ that subsume conjectural Ramanujan type formulas due to Z.-W. Sun, which have remained open since 2011. As an application of this, in a…

Number Theory · Mathematics 2024-11-05 Mark van Hoeij , Wei-Lun Tsai , Dongxi Ye

The document contains an outline of a modular proof for Ramanujan-Chudnovsky identity.

Number Theory · Mathematics 2018-07-27 Yue Zhao

In recent years, Z.-W. Sun proposed several sophisticated conjectures on congruences for finite sums with terms involving combinatorial sequences such as central trinomial coefficients, Domb numbers and Franel numbers. These sums are double…

Number Theory · Mathematics 2017-11-28 Yan-Ping Mu , Zhi-Wei Sun

In this paper, we will prove Zhi-Wei Sun's four conjectural identities on Ap\'{e}ry-like sums involving Lucas sequences and harmonic numbers by using a few results of Davydychev--Kalmykov.

Number Theory · Mathematics 2023-09-19 Ce Xu , Jianqiang Zhao

We consider binomial and inverse binomial sums at infinity and rewrite them in terms of a small set of constants, such as powers of $\pi$ or $\log(2)$. In order to perform these simplifications, we view the series as specializations of…

Number Theory · Mathematics 2015-10-30 Jakob Ablinger

We derive the recurrence relations for relativistic Coulomb integrals directly from the integral representations with the help of computer algebra methods. In order to manage the computational complexity of this problem, we employ holonomic…

Quantum Physics · Physics 2014-02-28 Christoph Koutschan , Peter Paule , Sergei K. Suslov
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