Weak ss-Lifting Modules
Keywords:
weak (ss-) lifting module, ss-supplemented module, semiperfect ring, local commutative principle ideal ringAbstract
Let M be a module. M is called weak ss-lifting if it is ss-supplemented and its ss-supplement submodules are direct summand. In this paper, we provide the basic properties of weak ss-lifting modules. In particular, we show that every direct summand of a weak ss-lifting module is weak ss-lifting. Moreover, we prove that a ring R is semiperfect with semisimple radical if and only if every projective left R-module is weak ss-lifting.
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