Postdoc day, Seminar 1: Twisted homology operations

Date: 2022-01-21

Time: 13:30 - 14:00


Calista Bernard


In the 70s, Fred Cohen and Peter May gave a description of the mod p homology of a free E_n-algebra in terms of certain homology operations, known as Dyer–Lashof operations, and the Browder bracket. I will discuss a framework to generalize these operations to homology with certain twisted coefficient systems and give a description of the homology of a free E_{infty}-algebra in terms of these operations. I will also give an overview of work in progress on twisted homology operations for E_2-algebras and discuss an application to mixed braid groups.