$H^2(S{L}_3(\mathbb{Z}[t]);\mathbb{Q})$ is infinite dimensional

Morgan Cesa, Brendan Kelly

We prove that $H^2(S{L}_3(\mathbb{Z}[t]);\mathbb{Q})$ is infinite dimensional. The proof follows an outline similar to recent results by Cobb, Kelly, and Wortman, using the Euclidea…