Butler groups of infinite rank and axiom 3
Ulrich F. Albrecht, Paul Hill (1987)
Czechoslovak Mathematical Journal
Similarity:
Ulrich F. Albrecht, Paul Hill (1987)
Czechoslovak Mathematical Journal
Similarity:
L. Fuchs, G. Viljoen (1994)
Rendiconti del Seminario Matematico della Università di Padova
Similarity:
Kulumani M. Rangaswamy (1994)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
It is shown, under ZFC, that a -group has the interesting property of being -prebalanced in every torsion-free abelian group in which it is a pure subgroup. As a consequence, we obtain alternate proofs of some well-known theorems on -groups.
Simion Breaz, Grigore Călugăreanu (2002)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
The notions of nearly-maximal and near Frattini subgroups considered by J.B. Riles in [20] and the natural related notions are characterized for abelian groups.
Ladislav Bican (1996)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
A torsion-free group is a -group if and only if it has an axiom-3 family of decent subgroups such that each member of has such a family, too. Such a family is called -family. Further, a version of Shelah’s Singular Compactness having a rather simple proof is presented. As a consequence, a short proof of a result [R1] stating that a torsion-free group in a prebalanced and TEP exact sequence is a -group provided and are so.