G. Lehner

activity

20212026

collaborators

Showing 2024Show all

2 papers · 1 filter

math.KT2024

Computing the negative $K$ -theory of finite groups of order $\leq 100$

Georg Lehner

We outline how the group $K_{- 1} (Z [G])$ for a finite group $G$ can be computed using the computer language $G A P$ and compile a table of all groups $G$ of order less than…

math.KT2024

Group completion via the action $\infty$ -category

Georg Lehner

We give a generalization of Quillen's $S^{- 1} S$ construction for arbitrary $E_{n}$ -monoids as an $E_{n - 1}$ -monoidal $\infty$ -category and show that its realization models the group c…

Computing the negative K-theory of finite groups of order ≤100

Group completion via the action ∞-category

Computing the negative $K$ -theory of finite groups of order $\leq 100$

Group completion via the action $\infty$ -category