Relative projective modules and relative injective modules
L Mao, N Ding - Communications in Algebra®, 2006 - Taylor & Francis
Let R be a ring, and n and d fixed non-negative integers. An R-module M is called (n, d)-
injective if Ext d+ 1 R (P, M)= 0 for any n-presented R-module P. M is said to be (n, d) …
injective if Ext d+ 1 R (P, M)= 0 for any n-presented R-module P. M is said to be (n, d) …
[PDF][PDF] Lixin Mao
N Ding - Communications in Algebra, 2006 - scholar.archive.org
Let R be a ring, and n and d fixed non-negative integers. An R-module M is called n d-
injective if Extd+1 R PM= 0 for any n-presented R-module P. M is said to be n d-projective if …
injective if Extd+1 R PM= 0 for any n-presented R-module P. M is said to be n d-projective if …
[PDF][PDF] Lixin Mao
N Ding - Communications in Algebra, 2006 - maths.nju.edu.cn
Let R be a ring, and n and d fixed non-negative integers. An R-module M is called n d-
injective if Extd+1 R PM= 0 for any n-presented R-module P. M is said to be n d-projective if …
injective if Extd+1 R PM= 0 for any n-presented R-module P. M is said to be n d-projective if …