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Finite group actions, rational fixed points and weak Néron models
Finite group actions rational fixed points weak Néron models
2010/12/1
If G is a finite ℓ-group acting on an affine space An over a finite field K of cardinality prime to ℓ, Serre [29] shows that there exists a rational fixed point. We generalize this to the ...
ON THE ADDITIVE GROUP STRUCTURE OF NONSTANDARD MODELS OF Z
ADDITIVE GROUP NONSTANDARD MODELS OF Z
2010/3/17
Let \hat{Z} denote the inverse limit of finite cyclic groups and FgZ the group mes Z, +> where F is a vector space over Q and + is defined by (a, x)+(b, y)=(a+b, x+y+g(a,b)) for some g: F\times F...