special automorphism
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scholarly journals Affine cones over cubic surfaces are flexible in codimension one

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Alexander Perepechko
Keyword(s):  
Automorphism Group ◽  
Open Subset ◽  
Pezzo Surface ◽  
Ample Divisor ◽  
Transitive Action ◽  
Del Pezzo Surface ◽  
Codimension One ◽  
Cubic Surfaces ◽  
Special Automorphism ◽  
Del Pezzo

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.

scholarly journals The special automorphism group of R[t]/(tm)[x1,…,xn] and coordinates of a subring of R[t][x1,…,xn]

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

Connected Graphs with Special Automorphism Groups: 10489

1998 ◽  
Vol 105 (3) ◽  
pp. 275
Author(s):  
Frank Schmidt ◽  
R. J. Chapman ◽  
J. H. Lindsey II
Keyword(s):  
Automorphism Groups ◽  
Connected Graphs ◽  
Special Automorphism

scholarly journals A presentation for the special automorphism group of a free group

1984 ◽  
Vol 33 (3) ◽  
pp. 269-279 ◽  
Author(s):  
S.M. Gersten
Keyword(s):  
Automorphism Group ◽  
Free Group ◽  
Special Automorphism

Prime-Power Abelian Groups Generated by a Set of Conjugates Under a Special Automorphism

1933 ◽  
Vol 55 (1/4) ◽  
pp. 553
Author(s):  
H. R. Brahana
Keyword(s):  
Prime Power ◽  
Abelian Groups ◽  
Special Automorphism
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