Large E-rings exist

Prescribing Endomorphism Algebras, a Unified Treatment

A. L. S. Corner, Göbel Rüdiger · Proceedings of the London Mathematical Society · 1985 · 193 citations

Natural Sciences, Mathematics, Algebra +8

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

Unital rings whose additive endomorphisms commute

R. A. Bowshell, Phill Schultz · Mathematische Annalen · 1977 · 67 citations

Natural Sciences, Mathematics, Algebra +6