Spherical delta-rings

Quand : 9 juin 2026 à 14:00

Où : Salle Pellos

Organisé par : Institut Henri Poincaré

Joyal’s notion of a delta-ring has lately gained much prominence in the context of prismatic cohomology. Extensions of the notion to derived algebra have been considered among others by Bhatt, Lurie and Scholze, however, there is currently no analog of the theory of delta-rings in spectral algebra. In this talk, I’ll speak about a possible definition of delta-rings over the sphere - given by E-inf