Mathematics – Algebraic Geometry
Scientific paper
2006-12-06
Mathematics
Algebraic Geometry
26 pages
Scientific paper
We construct an example of the birationally rigid complete intersection of a
quadric and a cubic in $\PA^5$ with an ordinary double point, which under a
small deformation gives a non-rigid Fano variety. Thus we show that birational
rigidity is not open in moduli.
Cheltsov I. A.
Grinenko Mikhail
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