期刊： INTERNATIONAL ELECTRONIC JOURNAL OF ALGEBRA, 2021; 30 ()
In this paper, we give the structure theorem of Hom-Hopf bimodules. Furthermore, we give the structure theorem of Hom-comodule algebras. Finally, we c......
期刊： INTERNATIONAL ELECTRONIC JOURNAL OF ALGEBRA, 2021; 30 ()
In this paper, some characterizations of partial isometries, normal elements and strongly EP elements are given by the construction of EP elements. At......
期刊： INTERNATIONAL ELECTRONIC JOURNAL OF ALGEBRA, 2021; 29 ()
Let R be a ring, n be an non-negative integer and d be a positive integer or infinity A right R-module M is called (n, d)*-projective if Ext(R)(1) (M,......
