In algebraic topology, Johnson–Wilson theory E(n) is a generalized cohomology theory introduced by David Copeland Johnson and W. Stephen Wilson (1975). Real Johnson–Wilson theory ER(n) was introduced by Po Hu and Igor Kříž (2001).

References

• Hu, Po; Kříž, Igor (2001). "Real-oriented homotopy theory and an analogue of the Adams-Novikov spectral sequence". Topology. 40 (2): 317–399. doi:10.1016/S0040-9383(99)00065-8. ISSN 0040-9383. MR 1808224.
• Johnson, David Copeland; Wilson, W. Stephen (1975). "BP operations and Morava's extraordinary K-theories". Mathematische Zeitschrift. 144 (1): 55–75. doi:10.1007/BF01214408. MR 0377856. S2CID 5930892.