Article
Positive Perturbations of Unbounded Operators
Proceedings of the American Mathematical Society
Document Type
Article
Publication Date
1-1-1977
Disciplines
Abstract
This work studies the spectral properties of certain unbounded selfadjoint operators by considering positive perturbations of such operators and the unitary equivalence of the perturbed and unperturbed transformations. Conditions are obtained on the unitary operators implementing this equivalence which guarantee that the selfadjoint operators have an absolutely continuous part.
DOI
10.2307/2041444
Citation Information
Joanne Dombrowski. "Positive Perturbations of Unbounded Operators" Proceedings of the American Mathematical Society Vol. 64 Iss. 2 (1977) p. 287 - 290 ISSN: 0002-9939 Available at: http://works.bepress.com/joanne_dombrowski/5/
First published in Proceedings of the American Mathematical Society 64.2 (1977), published by the American Mathematical Society.