{ "id": "1401.5322", "version": "v2", "published": "2014-01-21T14:21:07.000Z", "updated": "2014-05-17T12:18:19.000Z", "title": "On simultaneous diophantine approximations to $ζ(2)$ and $ζ(3)$", "authors": [ "Simon Dauguet", "Wadim Zudilin" ], "comment": "23 pages; v2: new subsection 4.5 added", "journal": "J. Number Theory 145 (2014) 362--387", "doi": "10.1016/j.jnt.2014.06.007", "categories": [ "math.NT" ], "abstract": "We present a hypergeometric construction of rational approximations to $\\zeta(2)$ and $\\zeta(3)$ which allows one to demonstrate simultaneously the irrationality of each of the zeta values, as well as to estimate from below certain linear forms in 1, $\\zeta(2)$ and $\\zeta(3)$ with rational coefficients. A new notion of (simultaneous) diophantine exponent is introduced to formalise the arithmetic structure of these specific linear forms. Finally, the properties of this newer concept are studied and linked to the classical irrationality exponent and its generalisations given recently by S. Fischler.", "revisions": [ { "version": "v2", "updated": "2014-05-17T12:18:19.000Z" } ], "analyses": { "subjects": [ "11J82", "11J72", "33C20" ], "keywords": [ "simultaneous diophantine approximations", "specific linear forms", "classical irrationality exponent", "rational approximations", "newer concept" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1401.5322D" } } }