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ON THE ADDITIVE GROUP STRUCTURE OF NONSTANDARD MODELS OF Z
ADDITIVE GROUP NONSTANDARD MODELS OF Z
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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...