English

On a theorem of Kac and Gilbert

Spectral Theory 2007-05-23 v1

Abstract

We prove a general operator theoretic result that asserts that many multiplicity two selfadjoint operators have simple singular spectrum.

Cite

@article{arxiv.math/0405110,
  title  = {On a theorem of Kac and Gilbert},
  author = {Barry Simon},
  journal= {arXiv preprint arXiv:math/0405110},
  year   = {2007}
}
R2 v1 2026-07-22T17:05:10.199Z