English

An invariant for varieties in positive characteristic

Algebraic Geometry 2007-05-23 v1

Abstract

We introduce an invariant of varieties in positive characteristic which generalizes the a-number of an abelian variety. We calculate it in some examples and discuss its meaning for moduli.

Keywords

Cite

@article{arxiv.math/0201246,
  title  = {An invariant for varieties in positive characteristic},
  author = {G. van der Geer and T. Katsura},
  journal= {arXiv preprint arXiv:math/0201246},
  year   = {2007}
}

Comments

Latex, 11 pages

R2 v1 2026-07-22T16:42:54.860Z