Open Science Harvester of NAS of Ukraine

13C99 16D80 16U80 Rickart modules \(\delta\)-semiperfect modules \(\delta\)-supplemented modules abelian modules principally \(\delta\)-semiperfect modules principally \(\delta\)-supplemented modules principally projective modules reduced modules rigid modules semicommutative modules semiperfect modules supplemented modules symmetric modules 2-primal rings central Armendariz rings central reduced rings central reversible rings central semicommutative rings central symmetric rings symmetric rings