β Scribed by H.E Scheiblich
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
In [K. R. Fuller, on indecomposable injectives over artinian rings, Pacific J. Math. 29 (1969), 115-135, Theorem 3.1] K. R. Fuller gave necessary and sufficient conditions for projective left modules to be injective over a left artinian ring. In [Y. Baba and K. Oshiro, On a theorem of Fuller, prepri
Regular projective quantales are characterized as the weakly \* -stable completely distributive lattices. For the class E of all onto quantale homomorphisms whose right adjoints preserve multiplication \* , it is proved that E-projective quantales are exactly weakly \* -stable completely distributiv
In this paper, we study the existence of β₯ -envelopes, -envelopes, β₯ -envelopes, -covers, and -covers where and denote the classes of modules of injective and projective dimension less than or equal to a natural number n, respectively. We prove that over any ring R, special β₯ -preenvelopes and speci