Countable Butler groups and vector spaces with four distinguished subspaces

Every Countable Reduced Torsion-Free Ring is an Endomorphism Ring

A. L. S. Corner · Proceedings of the London Mathematical Society · 1963 · 213 citations

Torsion-free Ring, Commutative Algebra, Ring Theory

Every Cotorsion-Free Ring is an Endomorphism Ring

Manfred Dugas, Rüdiger Göbel · Proceedings of the London Mathematical Society · 1982 · 105 citations

Ring Theory, Commutative Algebra, Cotorsion-free Ring +3

A Class of Torsion-Free Abelian Groups of Finite Rank

M. C. R. Butler · Proceedings of the London Mathematical Society · 1965 · 99 citations

Metabelian Group, Frattini Subgroup, Nilpotent Group +1

Endomorphism algebras of vector spaces with distinguished sets of subspaces

Sheila Brenner · Journal of Algebra · 1967 · 56 citations

Abstract Algebra, Algebraic Structure, Representation Theory +4

Endomorphism Rings of Vector Spaces and Torsion Free Abelian Groups

Sheila Brenner, M. C. R. Butler · Journal of the London Mathematical Society · 1965 · 37 citations

Vector Spaces, Commutative Algebra, Ring Theory