Semisimple-direct-injective modules unifies
C2 and
C3-modules. In the present paper, we introduce the notion of the semisimple
On a class of convolution equations in D'+ (R)On a class of convolution equations in D'+ (
R)
On classes of C3 and D3 modules if every A-
C3 right
R-module is quasi-injective, if and only if every A-
C3 right
R-module is
C3.
Q-degrees of n-C.E. setsIn this paper we study Q-degrees of n-computably enumerable (n-
c.e.) sets. It is proved that n-
c