Topology Seminar | Edith Hübner (Münster)

Title: Spherical delta-rings

Abstract: The notion of a delta-ring is central to the site-theoretic definition of prismatic cohomology. In this talk, I’ll introduce a variant for E_infty rings which enjoys two nice basic features: pi_0 of a connective spherical delta-ring is an ordinary delta-ring and the cofree spherical delta ring on a discrete perfect Fp-algebra recovers the spherical Witt vectors of Lurie and Burklund-Schlank-Yuan. This is joint work in progress with Thomas Nikolaus.

Add Event To My Group

Please sign-in