3 papers
math.OA2025
A local quantization principle for inclusions of tracial von Neumann algebras
Xinyan Cao, Junsheng Fang, Chunlan Jiang +1
We study the local quantization principle (after Sorin Popa~\cite{popa 94} and \cite{popa 95}) of inclusions of tracial von Neumann algebras. Let be a type ${\rm…
math.OA2020
On finite sums of projections and Dixmier's averaging theorem for type factors
Xinyan Cao, Junsheng Fang, Zhaolin Yao
Let be a type factor and let be the faithful normal tracial state on . In this paper, we prove that given an , $X=X^*…
math.OA2020
Strong sums of projections in type factors
Xinyan Cao, Junsheng Fang, Zhaolin Yao
Let be a type factor and let be the faithful positive semifinite normal trace, unique up to scalar multiples in the type case and normalized by…