Abstract

If $\left(R,I\right)$ is a henselian pair with an action of a finite group $G$ and $n\ge 1$ is an integer coprime to $\left|G\right|$ such that $n\cdot \left|G\right|\in R^{\ast }$, then the reduction map of mod-$n$ equivariant $K$-theory spectra

is an equivalence. We prove this by revisiting the recent proof of nonequivariant rigidity by Clausen, Mathew, and Morrow.

Keywords

Mathematical Subject Classification 2010

Milestones

Authors