Topics in 4-dimensionalal topology, Montags 12:15 - 14:00
MPIM Lecture Hall and Zoom (Id: 960 9156 6263)
Rob Schneiderman and Pete Teichner, Fall 2022
Oct. 10, Pete: Topic 1a, Knots, Links and the group of 2-spheres in 4-space.
Oct. 17, Rob: Intro to Whitney towers, Part 1A.
Oct. 24, Rob: Intro to Whitney towers, Part 1B.
Oct. 31, Pete: Topic 2a, Link homotopy in 3-space. Lecture as Video
Nov. 7, Rob+Pete: Topic 2b, Lectures as Video
Milnor invariants via Whitney towers and in link homotopy.
Nov. 14, Rob: Link homotopy and non-repeating Whitney towers.
Pete: Topic 2c, same title.
Nov. 21, Rob: Last proofs.
Nov. 28, Pete: Topic 3a, Configurations, Whitney towers and the space of link maps.
From Chern-Simons to Goodwillie-Weiss, a talk in St. Etienne de TineĢe, 2018.
Dec. 5, Pete: Topic 3b, Configurations spaces and Whitney towers.
Dec. 12, Pete: Topic 3c, Homotopy generators for the total fibre of the configuration cube.
Dec. 19, Rob: Repeating Milnor invariants via twisted Whitney towers.
Jan. 9, Rob: Twisted Whitney towers and higher Arf-invariants.
Jan. 16, Pete: Whitney towers and homotopy limits.
Jan. 23, Oberwolfach break
Jan. 30, Rob: Higher order intersection invariants for arbitrary 4-manifolds.