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”).

Created on February 8, 2016 at 09:35:49. See the history of this page for a list of all contributions to it.