Florian Riedel

collaborators

3 papers

math.AT2025

Reduced points of $E_{\infty}$ -rings in positive characteristic

Florian Riedel

We investigate whether an arbitrary non-zero $E_{\infty}$ -ring $A$ admits a reduced point, meaning an $E_{\infty}$ -map $A \to T$ such that $I ¨ _{*} T$ is a graded fie…

math.KT2025

On the K-theory of algebraic tori

Qingyuan Bai, Shachar Carmeli, Branko Juran +1

Given an algebraic torus $T$ over a field $F$ , its lattice of characters $I^$ gives rise to a topological torus $T (T) = I^_{R} / I^$ with a continuous action of the…

math.AT2024

On the deformation theory of $E_{\infty}$ -coalgebras

Florian Riedel

We introduce a notion of formally Ã©tale $E_{\infty}$ -coalgebras and show that they admit essentially unique, functorial lifts along square zero extensions of $\mathbb{E}_…

Reduced points of E∞​-rings in positive characteristic

On the K-theory of algebraic tori

On the deformation theory of E∞​-coalgebras

Reduced points of $E_{\infty}$ -rings in positive characteristic

On the deformation theory of $E_{\infty}$ -coalgebras