# Mathematical Sciences Research Institute

Home » Workshop » Schedules » En Genera

# En Genera

## Reimagining the Foundations of Algebraic Topology April 07, 2014 - April 11, 2014

April 11, 2014 (09:30 AM PDT - 10:30 AM PDT)
Speaker(s): Michael Mandell (Indiana University)
Location: MSRI: Simons Auditorium
Video
Abstract

Let $R$ be an $E_{2}$ ring spectrum with zero odd dimensional homotopy groups.  Every map of ring spectra $MU\to R$ is represented by a map of $E_{2}$ ring spectra.  If $2$ is invertible in $\pi_{0}R$, then every map of ring spectra $MSO\to R$ is represented by a map of $E_{2}$ ring spectra.  Joint work with Greg Chadwick.

Supplements