Strongly irreducible operators, $K_0$-groups, and Jones indices in the hyperfinite type ${\mathrm{II}}_1$ factor

Junsheng Fang, Chunlan Jiang, Minghui Ma +1

In this paper, we study the strong irreducibility of a class of operators associated with irrational rotation algebras in the hyperfinite type ${\mathrm{II}}_1$ factor $\mathcal{R}$.…