algebraic topology Algebraic topology is a branch of mathematics that uses tools from abstract algebra to study topological spaces. The basic goal is to find algebraic invariant (mathematics), invariants that classification theorem, classify topological spaces up t ...

, Johnson–Wilson theory ''E''(''n'') is a

generalized cohomology theory In mathematics, specifically in homology theory and algebraic topology, cohomology is a general term for a sequence of abelian groups, usually one associated with a topological space, often defined from a cochain complex. Cohomology can be viewed ...

introduced by . Real Johnson–Wilson theory ''ER''(''n'') was introduced by .

References

* * Homotopy theory {{Topology-stub