Proceedings of the American Mathematical Society, Vol. 134, No. 4 (Apr., 2006), pp. 1013-1017 (5 pages) It is proved that EJ is injective if E is an injective module ...
Proceedings of the American Mathematical Society, Vol. 81, No. 3 (Mar., 1981), pp. 377-381 (5 pages) We study noncommutative rings $R$ having the property that there ...