November 11, 2025
Title: Spectra of spectra (or geometry of cohomology) (MI talk)
Speaker: Laurent Smits
In this talk we will give an example based introduction to cohomology theories. Cohomology theories are tools used in algebraic topology to study topological spaces. It can be shown that they are represented by so called spectra.
Spectra behave very much like abelian groups. In particular, one can ask for multiplicative structures. In the end we want talk about the algebraic geometry of these ring-like spectra.