TY  - JOUR
AB  - 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.
AU  - Yang, Yanhong
DA  - 2011
LA  - eng
IS  - Münster Journal of Mathematics
M2  - 129
PY  - 2011
SP  - 129-140
T2  - Münster Journal of Mathematics
TI  - An improvement of de Jong-Oort’s purity theorem
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:6-32449561241
Y2  - 2024-12-26T18:36:02
ER  -