Séance Séminaire

Séminaire Algèbre Géométrie Algébrique Topologie Algébrique

Steenrod algebra and automorphism group of the additive group law

Milnor's classical theorem on the Hopf algebra structure of the Steenrod algebra shows as a corollary that the dual Steenrod algebra is isomorphic to the Hopf algebra representing the automorphism group of additive group law. I will give a direct proof of the existence of such an isomorphism, and show Milnor's theorem as a corollary