nLab graded abelian group

Idea

A graded object in abelian groups.

Examples

A generalized homology/generalized cohomology theory is a suitable covariant functor/contravariant functor from suitable topological spaces to $\mathbb{Z}$-graded abelian groups (“cohomology groups”).

Related concept

• super abelian group

• graded module

• graded vector space