English

On reduction theory and Brown measure for closed unbounded operators

Operator Algebras 2015-09-14 v1

Abstract

The theory of direct integral decompositions of both bounded and unbounded operators is further developed; in particular, results about spectral projections, functional calculus and affiliation to von Neumann algebras are proved. For operators belonging to or affiliated to a tracial von Neumann algebra that is a direct integral von Neumann algebra, the Brown measure is shown to be given by the corresponding integral of Brown measures.

Keywords

Cite

@article{arxiv.1509.03362,
  title  = {On reduction theory and Brown measure for closed unbounded operators},
  author = {Ken Dykema and Joseph Noles and Fedor Sukochev and Dmitriy Zanin},
  journal= {arXiv preprint arXiv:1509.03362},
  year   = {2015}
}

Comments

16 pages

R2 v1 2026-06-22T10:54:14.185Z