The T^1-lifting theorem in positive characteristic
Algebraic Geometry
2007-05-23 v2
Abstract
Replacing symmetric powers by divided powers and working over Witt vectors instead of ground fields, I generalize Kawamatas T^1-lifting theorem to characteristic p>0. Combined with the work of Deligne-Illusie on degeneration of the Hodge-de Rham spectral sequences, this gives unobstructedness for certain Calabi-Yau varieties with free crystalline cohomology modules.
Cite
@article{arxiv.math/0102203,
title = {The T^1-lifting theorem in positive characteristic},
author = {Stefan Schroeer},
journal= {arXiv preprint arXiv:math/0102203},
year = {2007}
}
Comments
13 pages, minor changes, to appear in J. Algebraic Geom