Talk:Obstruction classes and Pontrjagin classes (Ex)
(Difference between revisions)
Revision as of 13:03, 9 February 2012
1 Desiderata for this page
Ideally this page will also include at least the following information:
- A reference, probably to Baues' book, for obstructions to null-homotopy.
- A precise reference to [Kervaire1959].
- A precise reference to Bott who also proved Theorem 2.1 (perhaps even before Kervaire?)
- Conventions/constructions for settling the sign in Theorem 2.1.
- A reference to Husemoller's Fibre Bundles for a similar result for Chern classes. This also gives an explanation of the result via the Chern character which should be included in the page.
- Further discussion about the same problem for other characteristic classes and other bases spaces.
Diarmuid Crowley 16:21, 17 March 2010 (UTC)
2 References
- [Kervaire1959] M. A. Kervaire, A note on obstructions and characteristic classes, Amer. J. Math. 81 (1959), 773–784. MR0107863 (21 #6585) Zbl 0124.16302