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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)


Singularities of linear systems and the Waring problem

Author: Massimiliano Mella
Journal: Trans. Amer. Math. Soc. 358 (2006), 5523-5538
MSC (2000): Primary 14J70; Secondary 14N05, 14E05
Published electronically: July 21, 2006
MathSciNet review: 2238925
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Abstract: The Waring problem for homogeneous forms asks for additive decomposition of a form $ f$ into powers of linear forms. A classical problem is to determine when such a decomposition is unique. In this paper we answer this question when the degree of $ f$ is greater than the number of variables. To do this we translate the algebraic statement into a geometric one concerning the singularities of linear systems of $ \mathbb{P}^n$ with assigned singularities.

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Additional Information

Massimiliano Mella
Affiliation: Dipartimento di Matematica, Università di Ferrara, Via Machiavelli 35, 44100 Ferrara, Italy

PII: S 0002-9947(06)03893-1
Keywords: Waring, linear system, singularities, birational maps
Received by editor(s): June 17, 2004
Received by editor(s) in revised form: November 17, 2004
Published electronically: July 21, 2006
Additional Notes: This work was partially supported by Progetto Cofin 2002 “Geometria sulle varietà algebriche” Miur, Eager
Article copyright: © Copyright 2006 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.

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