special automorphism
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2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Alexander Perepechko

AbstractLet Y be a smooth del Pezzo surface of degree 3 polarized by a very ample divisor that is not proportional to the anticanonical one. Then the affine cone over Y is flexible in codimension one. Equivalently, such a cone has an open subset with an infinitely transitive action of the special automorphism group on it.



2007 ◽  
Vol 210 (1) ◽  
pp. 141-146 ◽  
Author(s):  
Arno van den Essen ◽  
Stefan Maubach ◽  
Stéphane Vénéreau


1998 ◽  
Vol 105 (3) ◽  
pp. 275
Author(s):  
Frank Schmidt ◽  
R. J. Chapman ◽  
J. H. Lindsey II






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