graded abelian group in nLab
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 ℤ\mathbb{Z}-graded abelian groups (“cohomology groups”).
Related concept
Last revised on May 10, 2022 at 22:24:12. See the history of this page for a list of all contributions to it.