Birational rigidity of a three-dimensional double cone

Details Birational rigidity of a three-dimensional double cone Birational rigidity of a three-dimensional double cone

1998-08-31

arxiv.org/abs/math/9808132v1

Mathematics

Algebraic Geometry

20 pages; AmsLaTex

Scientific paper

It is proved that a three-dimensional double cone is a birationally rigid
variety. We also compute the group of birational automorphisms of such a
variety. This work is based on the method of "untwisting" maximal singularities
of linear system.

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