Weak equivalence to Bernoulli shifts for some algebraic actions

Ben Hayes

Namely, we prove that if $G$ is a countable, discrete group and $f\in M_n(\mathbb{Z}(G))$ is invertible on ${\ell }^2(G{)}^{\oplus n},$ but $f$ is not invertible in $M_n(\mathbb{Z}(G))$, then the…