English

A nonstandard proof of the spectral theorem for unbounded self-adjoint operators

Functional Analysis 2021-04-06 v1 Mathematical Physics Logic math.MP

Abstract

We generalize Moore's nonstandard proof of the Spectral theorem for bounded self-adjoint operators to the case of unbounded operators. The key step is to use a definition of the nonstandard hull of an internally bounded self-adjoint operator due to Raab.

Keywords

Cite

@article{arxiv.2104.01949,
  title  = {A nonstandard proof of the spectral theorem for unbounded self-adjoint operators},
  author = {Isaac Goldbring},
  journal= {arXiv preprint arXiv:2104.01949},
  year   = {2021}
}

Comments

15 pages. First draft; comments welcome!