David Eigendorf (UiO): Frobenius lifts on suspension ring spectra

Abstract: 

The classical Frobenius for commutative rings admits a generalization to commutative ring spectra, introduced by Nikolaus and Scholze, known as the Tate-valued Frobenius. In this talk, I will review this construction and analyze its behaviour in the special case of suspension ring spectra.  I will establish various lifting and factorization theorems in this setting and will illustrate these through concrete examples.

Published Sep. 18, 2026 8:27 AM - Last modified Sep. 18, 2026 8:27 AM