Affiliation:
1. Hacettepe University, Department of Mathematics, Beytepe Campus, Ankara 06532, Turkey
Abstract
Abstract
In this article, we focus on modules M such that every homomorphism from a projection invariant submodule of M to M can be lifted to M. Although such modules share some of the properties of PI -extending (i.e., every projection invariant submodule is essential in a direct summand) modules, it is shown that they form a substantially bigger class of modules.
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