On the amenable subalgebras of group von Neumann algebras

Tattwamasi Amrutam, Yair Hartman, Hanna Oppelmayer

We approach the study of sub-von Neumann algebras of the group von Neumann algebra $L\Gamma$ for countable groups $\Gamma$ from a dynamical perspective. It is shown that $L(\Gamma )$ admits a maxi…