Unital rings whose additive endomorphisms commute

A torsion theory for Abelian categories

Spencer E. Dickson · Transactions of the American Mathematical Society · 1966 · 378 citations

Natural Sciences, Mathematics, Representation Theory +11

Torsion-free rings

Ross A. Beaumont, R. S. Pieace · Illinois Journal of Mathematics · 1961 · 119 citations · Full text

The endomorphism ring of the additive group of a ring

Phill Schultz · Journal of the Australian Mathematical Society · 1973 · 91 citations · Full text

Natural Sciences, Mathematics, Algebra +3

Structure of categories

John Isbell · Bulletin of the American Mathematical Society · 1966 · 67 citations · Full text

On rings on groups

James D. Reid · Pacific Journal of Mathematics · 1974 · 37 citations · Full text

Natural Sciences, Philosophy, Group Dynamics +10