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arXiv:math/0102203 [math.AG]AbstractReferencesReviewsResources

The T^1-lifting theorem in positive characteristic

Stefan Schroeer

Published 2001-02-26, updated 2001-09-01Version 2

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.

Comments: 13 pages, minor changes, to appear in J. Algebraic Geom
Journal: J. Algebraic Geom. 12 (2003), 699-714
Categories: math.AG
Subjects: 14D06, 14F40, 14J32, 32G05
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