Харвестер відкритої науки НАН України

16U80 5 13C99 3 16D80 3 $J$-symmetric ring 2 Jacobson radical 2 \(\delta\)-semiperfect modules 2 \(\delta\)-supplemented modules 2 principally \(\delta\)-semiperfect modules 2 principally \(\delta\)-supplemented modules 2 semiperfect modules 2 supplemented modules 2 symmetric ring 2 2-primal rings 1 central Armendariz rings 1 central reduced rings 1 central reversible rings 1 central semicommutative rings 1 central symmetric rings 1 symmetric rings 1