An improvement of de Jong-Oort’s purity theorem
Consider an F-crystal over a noetherian scheme S. De Jong-Oort’s purity theorem states that the associated Newton polygons over all points of S are constant if this is true outside a subset of codimension bigger than 1. In this paper we show an improvement of the theorem, which says that the Newton...
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Dokumenttypen: | Artikel |
Medientypen: | Text |
Erscheinungsdatum: | 2011 |
Publikation in MIAMI: | 14.11.2011 |
Datum der letzten Änderung: | 27.01.2023 |
Quelle: | Münster Journal of Mathematics, 4 (2011), S. 129-140 |
Angaben zur Ausgabe: | [Electronic ed.] |
Fachgebiet (DDC): | 510: Mathematik |
Lizenz: | InC 1.0 |
Sprache: | English |
Format: | PDF-Dokument |
URN: | urn:nbn:de:hbz:6-32449561241 |
Permalink: | https://nbn-resolving.de/urn:nbn:de:hbz:6-32449561241 |
Onlinezugriff: | mjm_vol_4_08.pdf |
Consider an F-crystal over a noetherian scheme S. De Jong-Oort’s purity theorem states that the associated Newton polygons over all points of S are constant if this is true outside a subset of codimension bigger than 1. In this paper we show an improvement of the theorem, which says that the Newton polygons over all points of S have a common break point if this is true outside a subset of codimension bigger than 1.