Learning Seminar on String Topology

This Fall quarter at Northwestern I'm co-organising (with Brian Williams) a learning seminar in string topology. Our goal is to learn about the string topology operations on the homology of a free loop space LM, and how they arise from a partially extended 2d TFT which assigns to a point either of the Calabi-Yau algebras Omega^*(M) or C_*(Omega M).

We'll meet twice a week, on Tuesdays and Thursdays at 10am in Lunt 102.

Schedule

Tuesday October 1st: Organisational Meeting
Thursday October 3rd: The Chas-Sullivan and Cohen-Jones Constructions of the String Product (Brian)
Tuesday October 8th: Higher String Topology Operations and (Non-extended) 2d TQFT (Elden)
Thursday October 10th: A Taxonomy of Extended 2d TQFTs: Part 1 (Chris)
Tuesday October 15th: A Taxonomy of Extended 2d TQFTs: Part 2 (Chris)
Thursday October 17th: Homotopy Invariance of the String BV algebra (Ben)
Tuesday October 22nd: The String Product as the Product on Hochschild Cohomology (Brian)
Thursday October 24th: The (Co)bar Construction (Peng)
Tuesday October 29th: A Taxonomy of Extended 2d TQFTs: Part 3 (Chris)
Thursday October 31st: Chen's Iterated Integrals (Phil)
Tuesday November 5th: String Topology as a HCFT (Aron)
Thursday November 7th: Koszul Duality and Cochains (Elden)
Tuesday November 12th: Discussion
Thursday November 14th: Relative Topological Field Theories (Brian)
Tuesday November 19th: A Categorified Analogue (Chris)
Thursday November 21st: String Topology as a Relative Field Theory (Phil)

References

Participants

Kevin Costello, Michael Couch, Chris Elliott, Elden Elmato, Aron Heleodoro, Theo Johnson-Freyd, Ben Knudsen, Guchuan Li, Matt Mahowald, Brian Williams, Phil-Sang Yoo, Peng Zhou