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SUMMARY:Hopf algebras and Quillen's spectral sequence - Søren Galatius (C
 olumbia)
DTSTART:20250806T140000Z
DTEND:20250806T150000Z
UID:TALK234919@talks.cam.ac.uk
CONTACT:Oscar Randal-Williams
DESCRIPTION:Quillen defined a spectral sequence relating the homology of l
 ocally symmetric spaces to algebraic K-theory of Z and other number rings.
   In joint work with Brown\, Chan\, and Payne (arXiv:2405.11528)\, we int
 roduce a Hopf algebra structure on this spectral sequence and give applica
 tions to the cohomology of the moduli space of principally polarized abel
 ian varieties.
LOCATION:MR14
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