Fall 2020

• October 13: Najib Idrissi (IMJ-PRG), Real homotopy of configuration spaces
• October 20: Noémie Combe (MPI MiS), Complement of the discriminant variety, Gauss–skizze operads and hidden symmetries
• October 27: Hannah Alpert (UBC), Representation stability and configurations of disks in a strip
• November 3: Lei Chen (Caltech), Actions of Homeo and Diffeo groups on manifolds
• November 17: Safia Chettih (Southwestern), An infinity operad of normalized cacti
• November 24: David Recio-Mitter (Lehigh), Geodesic complexity of motion planning
• December 1: Dan Petersen (Stockholm), Factorization statistics and bug-eyed configuration spaces
• December 8: Nick Salter (Columbia), r-spin mapping class groups and applications

Spring 2020

• January 28: Matthew Hogancamp (Northeastern), “Categorifying skeins in the solid torus”
• February 11: Ruth Charney (Brandeis), “Outer space for RAAGs”
• February 18: Nathaniel Bottman (USC), “The Fulton–MacPherson operad and Fukaya categories”
• February 25: Kathryn Hess (EPFL), “From precalculus to calculus in algebraic topology”
• March 10: Alexander Kupers (Harvard), “Double Steinberg coinvariants and the homology of general linear groups’’
• March 17: Lei Chen (Caltech)
• March 24: David Recio-Mitter (Lehigh)
• March 31: Safia Chettih (Southwestern)
• April 7: Nick Salter (Columbia)
• April 14: Jon McCammond (UCSB)

Fall 2019

• September 10: Nir Gadish (MIT), “The ‘generating function’ of configuration spaces as a source for explicit formulas and representation stability”
• September 17: Florian Naef (Northeastern University), “String topology and the configuration space of two points”
• September 24: Iva Halacheva (Northeastern University), “Tangles, circuit algebras, and the Kashiwara–Vergne problem”
• October 5: Kickoff mini-conference
• October 8: Aaron Abrams (Washington and Lee University), “Area relations in square triangulations”
• October 15: Benjamin Schweinhart (The Ohio State University), “Fractal dimension estimation with persistent homology”
• October 22: Phil Tosteson (University of Chicago), “Homological stability and the Deligne–Mumford compactification”
• October 29: Paolo Salvatore (Universita di Roma Tor Vergata), “Koszul self-duality of the little discs operad”
• November 5:
  • Graham Denham (Western University), “The Leray model of a matroid” (3:15–4:15pm in 544NI)
  • John Wiltshire-Gordon (University of Wisconsin), “FI-modules in high degree” (4:30–5:30pm in 509LA)
• November 12: Eric Ramos (University of Oregon), “Categories of graphs with contractions”
• November 19: Felix Wierstra (Max Planck Institute for Mathematics and Université Paris 13), “Cochains and rational homotopy type”