Grothendieck-Witt groups of some singular schemes
Résumé
We establish some structural results for the Witt and Grothendieck-Witt groups of schemes over Z[1/2], including ho-motopy invariance for Witt groups and a formula for the Witt and Grothendieck-Witt groups of punctured affine spaces over a scheme. All these results hold for singular schemes and at the level of spectra.
Domaines
Géométrie algébrique [math.AG]
Origine : Fichiers produits par l'(les) auteur(s)
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