Examples of property (T) II${}_1$ factors with trivial fundamental group

Ionut Chifan, Sayan Das, Cyril Houdayer +1

In this article we provide the first examples of property (T) $\mathrm{I}{\mathrm{I}}_1$ factors $\mathcal{N}$ with trivial fundamental group, $\mathcal{F}(\mathcal{N})=1$. Our examples arise as gro…