Hypergeometrie et Fonction Zeta de Riemann

Hypergeometrie et Fonction Zeta de Riemann

by C. Krattenthaler, T. Rivoal
     
 

ISBN-10: 0821839616

ISBN-13: 9780821839614

Pub. Date: 02/01/2007

Publisher: American Mathematical Society

The authors prove Rivoal's ''denominator conjecture'' 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 $1,\zeta(m),\zeta(m+2),\dots,\zeta(m+2h)$, where $m$ and $h$ are integers such that $m\ge2$ and

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Overview

The authors prove Rivoal's ''denominator conjecture'' 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 $1,\zeta(m),\zeta(m+2),\dots,\zeta(m+2h)$, where $m$ and $h$ are integers such that $m\ge2$ and $h\ge0$. In particular, the authors immediately get the following results as corollaries: at least one of the eight numbers $\zeta(5),\zeta(7),\dots,\zeta(19)$ 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. The authors also prove a related conjecture, due to Vasilyev, and as well a conjecture, due to Zudilin, 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. The authors hope that it will be possible to apply their construction to the more general linear forms constructed by Zudilin, with the ultimate goal of strengthening his result that one of the numbers $\zeta(5),\zeta(7),\zeta(9),\zeta(11)$ is irrational.

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Product Details

ISBN-13:
9780821839614
Publisher:
American Mathematical Society
Publication date:
02/01/2007
Series:
Memoirs of the American Mathematical Society Series, #186
Pages:
87
Product dimensions:
7.00(w) x 9.80(h) x 0.30(d)

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