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Minimums successifs des variétés toriques projectives

  • Martín Sombra
Published/Copyright: November 23, 2005
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Journal für die reine und angewandte Mathematik
From the journal Volume 2005 Issue 586

Abstract

Successive minima of projective toric varieties. We compute the successive minima of the projective toric variety  associated to a finite set  ⊂ ℤn. As a consequence of this computation and of the results of S.-W. Zhang on the distribution of small points, we derive estimates for the height of the subvariety  and of the -resultant. These estimates allow us to obtain an arithmetic analogue of the Bézout-Kushnirenko’s theorem concerning the number of solutions of a system of polynomial equations.

As an application of this result, we improve the known estimates for the height of the polynomials in the sparse Nullstellensatz.

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Published Online: 2005-11-23
Published in Print: 2005-09-27

Walter de Gruyter GmbH & Co. KG

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