Submission date: 5 April 2021

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.

Mathematics Subject Classification:

Keywords and phrases:

Full text arXiv 2104.01949: pdf, ps.