It is proven that an infinite finitely generated group cannot be elementarily equivalent to an ultraproduct of finite groups of a given Prufer rank. Furthermore, it is shown that an infinite finitely generated group of finite Prufer rank is not pseudofinite.
机构:
Univ Helsinki, Dept Math & Stat, POB 68,Pietari Kalmin Katu 5, Helsinki 00014, FinlandUniv Helsinki, Dept Math & Stat, POB 68,Pietari Kalmin Katu 5, Helsinki 00014, Finland
机构:
Univ Claude Bernard Lyon 1, CNRS, Inst Camille Jordan, 43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, France
Univ Claude Bernard Lyon 1, Univ Lyon, Inst Camille Jordan, 43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, FranceUniv Claude Bernard Lyon 1, CNRS, Inst Camille Jordan, 43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, France
Cornulier, Yves
Wilson, John S.
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Univ Cambridge Christs Coll, Cambridge CB2 3BU, England
Univ Leipzig, Math Inst, Leipzig, GermanyUniv Claude Bernard Lyon 1, CNRS, Inst Camille Jordan, 43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, France