On equivalence of graded rings.
Refai, Mashhoor, Obiedat, Sofyan (1998)
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Refai, Mashhoor, Obiedat, Sofyan (1998)
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We study the weak dimension of a group-graded ring using methods developed in [B1], [Q] and [R]. We prove that if R is a G-graded ring with G locally finite and the order of every subgroup of G is invertible in R, then the graded weak dimension of R is equal to the ungraded one.
Huq, S.A., Aijaz, Kulsoom (1969)
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Let G be a group with identity e. Let R be a G-graded commutative ring and M a graded R-module. In this paper we will obtain some results concerning the graded comultiplication modules over a commutative graded ring.
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