On spectral gap rigidity and Connes invariant $\chi(M)$
Operator Algebras
2009-10-13 v2
Abstract
We calculate Connes' invariant for certain II factors that can be obtained as inductive limits of subfactors with spectral gap, then use this to answer a question he posed in 1975, on the structure of McDuff factors with .
Cite
@article{arxiv.0909.5639,
title = {On spectral gap rigidity and Connes invariant $\chi(M)$},
author = {Sorin Popa},
journal= {arXiv preprint arXiv:0909.5639},
year = {2009}
}
Comments
8 pages