Models of torsors over affine spaces
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| Autors: | , |
|---|---|
| Format: | artículo original |
| Data de publicació: | 2019 |
| Descripció: | Let X := A n R be the n-dimensional affine space over a discrete valuation ring R with fraction field K. We prove that any pointed torsor Y over A n K under the action of an affine finite-type group scheme can be extended to a torsor over A n R possibly after pulling Y back over an automorphism of A n K . The proof is effective. Other cases, including X = αp,R, are also discussed. |
| Pais: | Kérwá |
| Institution: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/79846 |
| Accés en línia: | https://www.cambridge.org/core/journals/mathematika/article/models-of-torsors-over-affine-spaces/974972A10E88F9A0845B59C3BDA8A6DD https://hdl.handle.net/10669/79846 |
| Paraula clau: | Matemáticas Análisis matemático Matemáticas-Torsores |