Pdf files of slides from various talks.
- Groups, Homotopy and Configuration Spaces: conference in honor of Fred Cohen
- University of Tokyo, July 5-11, 2005.
- Homotopy Theory Conference in Honor of Joe Neisendorfer's 60th Birthday -
University of Montreal, November 18-20, 2005. Talk
- Andrew Ranicki's 60th Birthday Conference:
Surgery and Manifold Theory Munster University, June 19, 2008.
- Toplogy Seminar, Rutgers, February 22, 2011.
- Toplogy Seminar, Princeton, March 22, 2011.
- Configuration spaces, braids and applications, Tulane, January 13, 2012.
- Configuration spaces, braids and applications, Tulane, January 14, 2012.