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arXiv:1703.09464 [math.AG]AbstractReferencesReviewsResources

Almost homogeneous curves over an arbitrary field

Bruno Laurent

Published 2017-03-28Version 1

We classify the pairs $(C,G)$ where $C$ is a seminormal curve over an arbitrary field $k$ and $G$ is a smooth connected algebraic group acting faithfully on $C$ with a dense orbit, and we determine the equivariant Picard group of $C$. We also give a partial classification when $C$ is no longer assumed to be seminormal.

Comments: 36 pages. Comments are welcome
Categories: math.AG
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