Injectivity and related concepts in modular varieties: II. The congruence extension property
Emil W. Kiss · Bulletin of the Australian Mathematical Society · 1985
Varieties with enough injectives satisfy the congruence extension property (CEP). We investigate the CEP in modular varieties by using the techniques developed in the first part of the present paper. As corollaries, we obtain the results of B. Davey and J. Kollár for the congruence distributive case as well as the description of all varieties of groups and rings with CEP, given by B. Biró, E.W. Kiss and P.P. Pálfy.