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Showing 2008 · math.RAShow all
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math.RA2008
The Dixmier-Moeglin equivalence for twisted homogeneous coordinate rings
J. Bell, D. Rogalski, S. J. Sierra
Given a projective scheme over a field , an automorphism of , and a -ample invertible sheaf , one may form the twisted homogeneous coordinate ring $B = B(X, L,…
math.RA2008
Shephard-Todd-Chevalley Theorem for skew polynomial rings
E. Kirkman, J. Kuzmanovich, J. J. Zhang
We prove the following generalization of the classical Shephard-Todd-Chevalley Theorem. Let be a finite group of graded algebra automorphisms of a skew polynomial ring $A:=k_{p…