Infinitary equivalence of abelian groups
Paul Eklof (1974)
Fundamenta Mathematicae
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Paul Eklof (1974)
Fundamenta Mathematicae
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Benjamin Fine, Gerhard Rosenberger, Michael Stille (1997)
Revista Matemática de la Universidad Complutense de Madrid
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Here we consider two classes of torsion-free one-relator groups which have proved quite amenable to study-the cyclically pinched one-relator groups and the conjugacy pinched one-relator groups. The former is the class of groups which are free products of free groups with cyclic amalgamations while the latter is the class of HNN extensions of free groups with cyclic associated subgroups. Both are generalizations of surface groups. We compare and contrast results in these classes relative...
P. A. Zalesskii (1999)
Disertaciones Matemáticas del Seminario de Matemáticas Fundamentales
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Tieudjo, D. (2005)
International Journal of Mathematics and Mathematical Sciences
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Ladislav Bican, László Fuchs (1994)
Czechoslovak Mathematical Journal
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Simion Breaz, Grigore Călugăreanu (2002)
Commentationes Mathematicae Universitatis Carolinae
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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.