Normality of orbit closures for Dynkin quivers¶of type ?n |
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| Authors: | Grzegorz Bobiński Grzegorz Zwara |
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| Institution: | Faculty of Mathematics and Computer Science, Nicholas Copernicus University, Chopina 12/18, 87-100 Toruń, Poland.?e-mail: gregbob@mat.uni.torun.pl, gzwara@mat.uni.torun.pl, PL
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| Abstract: | It is known that the orbit closures for the representations of the equioriented Dynkin quivers ?
n
are normal and Cohen–Macaulay varieties with rational singularities. In the paper we prove the same for the Dynkin quivers
?
n
with arbitrary orientation.
Received: 25 October 2000 / Revised version: 28 February 2001 |
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| Keywords: | Mathematics Subject Classification (2000): 14L30 16G20 16G70 |
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