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arXiv · 1303.1770

Operator integrals and sesquilinear forms

Daniel Dubin·Jukka Kiukas·Juha-Pekka Pellonpää·Kari Ylinen
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Abstract

We consider various systematic ways of defining unbounded operator valued integrals of complex functions with respect to (mostly) positive operator measures and positive sesquilinear form measures, and investigate their relationships to each other in view of the extension theory of symmetric operators. We demonstrate the associated mathematical subtleties with a physically relevant example involving moment operators of the momentum observable of a particle confined to move on a bounded interval.

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Daniel Dubin, Jukka Kiukas, Juha-Pekka Pellonpää, Kari Ylinen. 2013-03-07. Operator integrals and sesquilinear forms. https://arxiv.org/abs/1303.1770

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