An approach to Hopf algebras via Frobenius coordinates.
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Applications of epigroups to graded ring theory.
A.V. Kelarev (1995)
Semigroup forum
Assoziative Tripelsysteme.
Ottmar Loos (1972)
Manuscripta mathematica
Automorphism liftable modules
Chelliah Selvaraj, Sudalaimuthu Santhakumar (2018)
Commentationes Mathematicae Universitatis Carolinae
We introduce the notion of an automorphism liftable module and give a characterization to it. We prove that category equivalence preserves automorphism liftable. Furthermore, we characterize semisimple rings, perfect rings, hereditary rings and quasi-Frobenius rings by properties of automorphism liftable modules. Also, we study automorphism liftable modules with summand sum property (SSP) and summand intersection property (SIP).
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