Algebra/Topology Seminar – University of Copenhagen

Algebra/Topology Seminar

Speaker: Guchuan Li (Northwestern University)

TitleThe Gross-Hopkins duals duals of higher real K-theory at prime 2

Abstract: The Hopkins-Mahowald higher real K-theory spectra $E_n^G$ are generalizations of real K-theory; they are ring spectra which give some insight into higher chromatic levels while also being computable. This will be a talk based on joint work with Drew Heard and XiaoLin Danny Shi, in which we compute that higher real K-theory spectra with group $G=C_2$ at prime $2$ and height $n$ are Gross-Hopkins self duals with a shift $4+n$. This will allow us to detect exotic invertible $K(n)$-local spectra.