Messages

Published Mar. 31, 2017 4:13 PM

Here are my current notes (last updated May 4th).

- John

Published Mar. 27, 2017 10:03 AM

Due to a conference in Regensburg, the Easter holidays and Ib Madsen's retirement conference, I will replace the April 7th and April 21st classes with lectures at the following times:

  • Tuesday April 11th at 10.15-12.00 in room B738, and
  • Wednesday April 19th at 14.15-16.00 in room B738.

We will resume the regular schedule on April 28th and May 5th. The exam will be on May 12th.

- John

Published Mar. 8, 2017 1:05 PM

Some references on the stable homotopy category:

Published Feb. 21, 2017 11:35 AM

The student representative this term is Alice Hedenlund.

Published Feb. 2, 2017 4:02 PM

The lectures have been moved to Fridays 10.15-14.00 in room B738.

- John

Published Feb. 2, 2017 3:59 PM
Published Jan. 24, 2017 10:42 AM

Some references on point set topology:

Published Jan. 10, 2017 1:49 PM

Some references on topological K-theory:

Published Jan. 10, 2017 1:41 PM

Some resources on (co-)bordism:

Published Dec. 20, 2016 10:30 AM

I plan to lecture about foundations and applications of stable homotopy theory.

As motivation, we may study examples of generalized (co)homology theories, such as bordism [Pontryagin, Thom] and $K$-theory [Bott, Atiyah-Hirzebruch].  Such functors become representable in the stable homotopy category [Boardman, Adams], which is triangulated and closed symmetric monoidal.  In the 1990s, this structure was found to arise as the homotopy category of a model category, in several ways, including $S$-modules, symmetric spectra and orthogonal spectra [Elmendorf-Kriz-Mandell-May, Hovey-Shipley-Smith, Lydakis, May-Mandell-Schwede-Shipley, ...].  We will follow a book project by Stefan Schwede, titled "Symmetric Spectra", as an introduction to these results.  Thereafter we will turn to the equivariant theory [Adams, Lewis-May-Steinberger,...