Stability seminar

The seminar meets on Wednesdays from 11am to noon for the 2023-24 academic year. Please email karthg@umich.edu to be added to the mailing list.

Decomposition into irreps of symmetric groups of the first rational cohomology of the pure braid group (from here).

April 17: Alessandro Danelon on Singularities of GL-varieties
April 10: Kent Vashaw (MIT) on An introduction to noncommutative tensor-triangular geometry
April 3: Anh Trong Nam Hoang (Minnesota) on Homology of Hurwitz spaces via Fox-Neuwirth cells
March 27: Serina Hu (MIT) on Representation theory in the higher Verlinde category Ver_4^+
March 20: Agustina Czenky (Oregon) on Low rank symmetric fusion categories in positive characteristic
March 13: Sophie Kriz (Princeton) on Interpolation of general affine groups in characteristic 0 via representation stability
March 6: Rita Jiménez Rolland (UNAM) on 'Puncture' stability for the (co)homology of mapping class
February 28: No seminar
February 21: Keller Vandebogert (Notre Dame) on Stability and Periodicity Phenomena for Cohomology of Sheaves
February 14: Claudia Yun on Computing stable representations of graph configuration spaces
February 7: Sarah Peluse on Divisibility of character values of the symmetric group
January 31: Amichai Lampert on Strength of polynomials over finite fields and equidistribution
January 24: Zachary Himes on Homological stability for Hurwitz spaces
January 17: Andrew Snowden on Geometry of polynomial representations (part two)

November 29: Urshita Pal on Rational duality groups and the Cohomology of SL_n(Z)
November 22: No seminar
November 15: Andrew Snowden on Geometry of polynomial representations
November 8: Jenny Wilson on "Badness" arguments and the Solomon--Tits theorem
November 1: No seminar
October 25: Nir Gadish on Letter Braiding Invariants of Words in Groups
October 18: Teresa Yu on Towards standard monomial theory modulo Frobenius
October 11: Alessandro Danelon on Polynomial functors, Vec-varieties, and singular locus
October 04: Karthik Ganapathy on Deligne's theorem in positive characteristic
September 27: Ilia Nekrasov on Arboreal Tensor Categories
September 20: Zachary Himes on A lower bound on the top degree rational cohomology of the symplectic group of a number ring
September 13: Amichai Lampert on Schmidt rank/strength and the singular locus

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