13 citations
2 papers
math.OA2006★ 1 cited
Spectral flow and winding number in von Neumann algebras
Charlotte Wahl
We introduce a new topology, weaker than the gap topology, on the space of selfadjoint operators affiliated to a semifinite von Neumann algebra. We define the real-valued spectral…
math.OA2006★ 13 cited
On the noncommutative spectral flow
Charlotte Wahl
We define and study the noncommutative spectral flow for paths of regular selfadjoint Fredholm operators on a countably generated Hilbert C*-module. We give an axiomatic descriptio…