English

Mod 2 power operations revisited

Algebraic Topology 2023-10-04 v1

Abstract

In this mostly expository note we take advantage of homotopical and algebraic advances to give a modern account of power operations on the mod 2 homology of E\mathbb{E}_{\infty}-ring spectra. The main advance is a quick proof of the Adem relations utilizing the Tate-valued Frobenius as a homotopical incarnation of the total power operation. We also give a streamlined derivation of the action of power operations on the dual Steenrod algebra.

Cite

@article{arxiv.1905.00054,
  title  = {Mod 2 power operations revisited},
  author = {Dylan Wilson},
  journal= {arXiv preprint arXiv:1905.00054},
  year   = {2023}
}

Comments

20 pages, comments very welcome!

R2 v1 2026-06-23T08:53:47.064Z