{ "id": "math/0311114", "version": "v4", "published": "2003-11-07T16:10:45.000Z", "updated": "2004-12-20T18:06:16.000Z", "title": "Hyperg{é}om{é}trie et fonction z{ê}ta de Riemann", "authors": [ "C. Krattenthaler", "T. Rivoal" ], "comment": "AmS-LaTeX, 73 pages; completely rewritten: (1) The strategy for proving the theorems for the coefficient p_0 was changed. The effect is that our theorems now hold unconditionally. (2) A full proof of Zudilin's conjecture on the linear forms for zeta(4) coming from symmetric series is now contained. (3) These improvements made it necessary to completely restructure the article", "journal": "Mem. Amer. Math. Soc. 186, no. 875, Providence, R. I., 2007.", "categories": [ "math.NT", "math.CA" ], "abstract": "We prove the second author's \"denominator conjecture\" [40] concerning the common denominators of coefficients of certain linear forms in zeta values. These forms were recently constructed to obtain lower bounds for the dimension of the vector space over $\\mathbb Q$ spanned by $1,\\zeta(m),\\zeta(m+2),...,\\zeta(m+2h)$, where $m$ and $h$ are integers such that $m\\ge2$ and $h\\ge0$. In particular, we immediately get the following results as corollaries: at least one of the eight numbers $\\zeta(5),\\zeta(7),...,\\zeta(19)$ is irrational, and there exists an odd integer $j$ between 5 and 165 such that 1, $\\zeta(3)$ and $\\zeta(j)$ are linearly independent over $\\mathbb{Q}$. This strengthens some recent results in [41] and [8], respectively. We also prove a related conjecture, due to Vasilyev [49], and as well a conjecture, due to Zudilin [55], on certain rational approximations of $\\zeta(4)$. The proofs are based on a hypergeometric identity between a single sum and a multiple sum due to Andrews [3]. We hope that it will be possible to apply our construction to the more general linear forms constructed by Zudilin [56], with the ultimate goal of strengthening his result that one of the numbers $\\zeta(5),\\zeta(7),\\zeta(9),\\zeta(11)$ is irrational.", "revisions": [ { "version": "v4", "updated": "2004-12-20T18:06:16.000Z" } ], "analyses": { "subjects": [ "11J72", "11J82", "33C20" ], "keywords": [ "denominator conjecture", "odd integer", "common denominators", "ultimate goal", "general linear forms" ], "tags": [ "journal article", "monograph" ], "publication": { "publisher": "AMS", "journal": "Mem. Amer. Math. Soc." }, "note": { "typesetting": "LaTeX", "pages": 73, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003math.....11114K" } } }