Singularities of orbit closures in module varieties and cones over rational normal curves
نویسنده
چکیده
Let N be a point of an orbit closure OM in a module variety such that its orbit ON has codimension two in OM . We show that under some additional conditions the pointed variety (OM , N) is smoothly equivalent to a cone over a rational normal curve.
منابع مشابه
N ov 2 00 4 Orbit closures for representations of Dynkin quivers are regular in codimension two
We develop reductions for classifications of singularities of orbit closures in module varieties. Then we show that the orbit closures for representations of Dynkin quivers are regular in codimension two.
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