This is the website of the topology seminar at Northeastern University, organized by Ben Knudsen, Jose Perea, Alex Suciu, and Anh Hoang. The scope of the seminar encompasses algebraic, geometric, combinatorial, and applied topology. Unless otherwise noted, the seminar meets in person on Tuesdays at 4:30 PM Boston time in Lake Hall 509. Talks marked “virtual” stream live (Zoom meeting 975 7713 9071, password “topology”). Please email Ben if you’d like to be added to the mailing list. Below is the schedule of upcoming talks; click the links or see the calendar for abstracts.

• September 17: Thomas Koberda (University of Virginia), Locally dense groups of homeomorphisms and finiteness properties
• September 24: Anh Hoang (Northeastern), Configuration spaces and applications to arithmetic statistics
• October 29: Theo Douvropoulos (Brandeis), Shi-like and Catalan-like deformations for restricted reflection arrangements
• November 5: Iris Yoon (Wesleyan), Dowker duality, profunctors, and spectral sequences
• November 12: Jean-Paul Brasselet (Institut de Mathématiques de Marseilles), The Schwartz-MacPherson classes in the framework of Lipschitz stratifications
• November 19: Henry Adams (University of Florida), Persistent equivariant cohomology
• December 3: Dezhou Li (Northeastern), The Cartan–Leray spectral sequence for the braid group