Publikationen (FIS)
The diagonal of quartic fivefolds
- verfasst von
- Nebojsa Pavic, Stefan Schreieder
- Abstract
We show that a very general quartic hypersurface in over a field of characteristic different from 2 does not admit a decomposition of the diagonal, hence is not retract rational. This generalizes a result of Nicaise–Ottem, who showed stable irrationality over fields of characteristic zero. To prove our result, we introduce a new cycle-theoretic obstruction that may be seen as an analogue of the motivic obstruction for rationality in characteristic zero, introduced by Nicaise–Shinder and Kontsevich–Tschinkel.
- Organisationseinheit(en)
-
Institut für Algebraische Geometrie
- Typ
- Artikel
- Journal
- Algebraic Geometry
- Band
- 10
- Seiten
- 754-778
- Anzahl der Seiten
- 25
- ISSN
- 2313-1691
- Publikationsdatum
- 2023
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Algebra und Zahlentheorie, Geometrie und Topologie
- Elektronische Version(en)
-
https://arxiv.org/abs/2106.04539 (Zugang:
Offen)
https://doi.org/10.14231/AG-2023-027 (Zugang: Offen)
https://doi.org/10.48550/arXiv.2106.04539 (Zugang: Offen)
https://doi.org/10.15488/17555 (Zugang: Offen)