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arXiv · 1304.4189

Flexible bundles over rigid affine surfaces

Adrien Dubouloz
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Abstract

We construct a smooth rational affine surface S with finite automorphism group but with the property that the group of automorphisms of the cylinder SxA^2 acts infinitely transitively on the complement of a closed subset of codimension at least two. Such a surface S is in particular rigid but not stably rigid with respect to the Makar-Limanov invariant.

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Adrien Dubouloz. 2013-04-15. Flexible bundles over rigid affine surfaces. https://arxiv.org/abs/1304.4189

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