dc.rights.license | CC-BY-NC-ND | |
dc.contributor.advisor | Ban, E.P. van den | |
dc.contributor.author | Zwart, K.R. | |
dc.date.accessioned | 2018-07-25T17:01:52Z | |
dc.date.available | 2018-07-25T17:01:52Z | |
dc.date.issued | 2018 | |
dc.identifier.uri | https://studenttheses.uu.nl/handle/20.500.12932/29901 | |
dc.description.abstract | In this thesis, we will introduce the notion of unbounded operators on a Hilbert space. We will discuss the definition of the adjoint of an operator, and what it means for an operator to be self-adjoint. After that, we will restrict ourselves to bounded operators and prove the Spectral Theorem for normal bounded operators. The notion of a spectral measure will be introduced as well. After that, we return to unbounded operators and we will consider the Cayley-transform. With that and the spectral theorem for normal bounded operators, we prove the spectral theorem for unbounded self-adjoint operators. Then we look into the situations that two unbounded self-adjoint operators commute on a common domain. We then prove a theorem of Nelson that gives some criteria which imply that the spectral measures of the two operators commute. And finally we will consider two examples of unbounded operators that play a role in Quantum Mechanics. | |
dc.description.sponsorship | Utrecht University | |
dc.format.extent | 570797 | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.title | The spectral theorem for unbounded self-adjoint operators and Nelson's theorem. | |
dc.type.content | Bachelor Thesis | |
dc.rights.accessrights | Open Access | |
dc.subject.keywords | unbounded operators, self-adjoint operator, spectral theorem for bounded operators, spectral theorem for unbounded self-adjoint operators, commuting self-adjoint operators, strongly commuting self-adjoint operators, distribution theory, position operator, momentum operator | |
dc.subject.courseuu | Wiskunde | |