Peter

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seen Jun 11 '13 at 8:43

Nov
19
comment Group action on Brauer-Severi varieties
So suppose there are closed points x and y such that the residue fields are isomorphis as k-algebras does there exsist an element of Aut_{X/k}(k) mapping x to y?
Nov
19
comment Group action on Brauer-Severi varieties
I see, but supposing this is the case what can we say?
Nov
19
asked Group action on Brauer-Severi varieties
Nov
16
awarded  Student
Nov
16
comment Automorphism Group on Brauer-Severi variety
concretely: you have a closed point x in X and a closed point y in X, so is there an automorphism of X such that the automorphism maps x to y?
Nov
16
comment Automorphism Group on Brauer-Severi variety
I was thinking on something in the sense of transitivity on the closed points of X. So we can consider a finite non split field extension of k, say L, and ask for the transitivity of Aut(X(L))-action on X(L).
Nov
16
asked Automorphism Group on Brauer-Severi variety