Hopf algebras and Quillen's spectral sequence

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• Søren Galatius (Columbia)
• Wednesday 06 August 2025, 15:00-16:00
• MR14.

If you have a question about this talk, please contact Oscar Randal-Williams.

Quillen defined a spectral sequence relating the homology of locally symmetric spaces to algebraic K-theory of Z and other number rings.  In joint work with Brown, Chan, and Payne (arXiv:2405.11528), we introduce a Hopf algebra structure on this spectral sequence and give applications to the cohomology of the moduli space of principally polarized abelian varieties.

This talk is part of the Topology talk series.

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