BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY, cilt.38, sa.4, ss.1317-1330, 2015 (SCI-Expanded)
In this paper we introduce and study the concepts of graded second (grsecond)
and graded coprimary (gr-coprimary) modules which are different from second
and coprimary modules over arbitrary-graded rings. We list some properties
and characterizations of gr-second and gr-coprimary modules and also study graded
prime submodules of modules with gr-coprimary decompositions. We also deal with
graded secondary representations for graded injective modules over commutativegraded
rings. By using the concept of σ-suspension (σ )M of a graded module M, we
prove that a graded injective module over a commutative graded Noetherian ring has
a graded secondary representation.
Keywords Graded second module · Graded coprimary module · Graded prime
submodule · Graded primary ideal · Graded secondary module
Mathematics Subject Classification 16W50 · 16U30 · 16N60 · 13A02 · 13C11