Approximation by normal elements with finite spectra in simple AF-algebras
Hauxin Lin · UVic’s Research and Learning Repository (University of Victoria) · 1991
We show that normal elements in simple AF-algebras with countably many extremal traces (such as UHF-algebras and matroid algebras) can be approximated by normal elements with finite spectra. Other AF-algebras are shown to have the same property.