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Chow-Witt groups and Grothendieck-Witt groups of regular schemes

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Jean Fasel
2009

Abstract

Let A be a noetherian commutative Z[1/2]-algebra of Krull dimension d and let P be a projective A-module of rank d. We use derived Grothendieck-Witt groups and Euler classes to detect some obstructions for P to split off a free factor of rank one. If d

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https://infoscience.epfl.ch/entities/publication/454bff0a-7ca4-49e6-a023-a1f2a5fb2f5d

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