# Topology Seminar W10

This seminar is held on Tuesdays at 11am in 210 Deady.

### Fall Quarter, 2009

- January 5 – (joint with Geometric Analysis seminar)

Jonathan Rosenberg (University of Maryland).

**Harmonic maps between noncommutative tori** - January 12 – meeting to discuss Geometry/Topology course offerings for 2010-11.
- January 19 – no seminar.
- January 26 – Hal Sadofsky (University of Oregon)

Singularities in regular cell complexes and Koszulity of certain algebras. - February 2 – Dan Dugger (University of Oregon)

Rigidification of quasi-categories. - February 9 – Boris Botvinnik (University of Oregon)

The moduli space of generalized Morse functions. - February 16 – Graham Denham (University of Western Ontario)

Critical sets of products of linear forms. - February 23 – joint with Algebra Seminar (during their meeting time)

Dmitry Kaledin (Steklov Math Inst. and Univ. of Chicago)

Derived Mackey functors. - March 2 – Chad Giusti (University of Oregon)

Unstable Vassiliev spectral sequences. - March 9 – Dev Sinha (University of Oregon)

Some approachable open questions related to the cohomology of symmetric groups.

Previous quarters: F09 F08 S08 W08 F07S07 W07 F06 F05-S06 F04-S05 F03-S04 F02-S03 F00-S01 F99-S00 F98-S99 F97-S98