Articles with "selfadjoint" as a keyword



On properties of real selfadjoint operators

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Published in 2020 at "Banach Journal of Mathematical Analysis"

DOI: 10.1007/s43037-020-00101-x

Abstract: In spite of the important applications of real selfadjoint operators and monotone operators, very few papers have dealt in depth with the properties of such operators. In the present paper, we follow A. Rhodius to… read more here.

Keywords: sigma mathbb; mathbb mathbb; selfadjoint; real selfadjoint ... See more keywords
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Anti-selfadjoint operators as commutators of projections

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Published in 2019 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2019.05.042

Abstract: Abstract Let A be an anti-selfadjoint operator on a Hilbert space H with ‖ A ‖ ≤ 1 2 . We give a sufficient and necessary condition for A to be a commutator of a… read more here.

Keywords: anti selfadjoint; commutators projections; orthogonal projections; operators commutators ... See more keywords