Grothendieck-Witt groups of some singular schemes
| Autor: | Karoubi, Max, Schlichting, Marco, Weibel, Charles |
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| Rok vydání: | 2020 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1112/plms.12383 |
| Popis: | We establish some structural results for the Witt and Grothendieck-Witt groups of schemes over $\mathbb{Z}[1/2]$, including homotopy 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. Comment: There is an appendix by M. Schlichting |
| Databáze: | arXiv |
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