Inert subgroups of uncountable locally finite groups Barbara Majcher-Iwanow (2003) Commentationes Mathematicae Universitatis Carolinae Let G be an uncountable universal locally finite group. We study subgroups H < G such that for every g ∈ G , | H : H ∩ H g | < | H | .
Infinitary stationary logic and abelian groups Paul Eklof, Allan Mekler (1981) Fundamenta Mathematicae
Interpreting number theory in nilpotent groups. Wilfrid Hodges (1980) Archiv für mathematische Logik und Grundlagenforschung