On Knebusch's Norm Principle for quadratic forms over semi-local rings

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We prove the version of Knebusch's Norm principle for simple extensions of (semi-)local rings. As an application we prove the Grothedieck-Serre's conjecture on principal homogeneous spaces for the split case of the spinor group.
10 pages, using XYPIC

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Rings and Algebras, Commutative Algebra, Algebraic Geometry, 11E08

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http://salesiana.dossiersoluciones.com/handle/123456789/96167

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0304408
 http://arxiv.org/abs/math/0304408
 Math. Zeitschrift 251 (2005), no.2, 415-425

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