## 2 00 8 Quasi - diagonal flows

- Akitaka Kishimoto, Derek W. Robinson
- 2008

When α is a flow on a unital AF algebra A such that there is an increasing sequence (An) of finite-dimensional α-invariant C ∗-subalgebras of A with dense union, we call α an AF flow. We show that an approximate AF flow is a cocycle perturbation of an AF flow.