Proceedings of the American Mathematical Society

Author(s): S. Albeverio; P. Kurasov
Journal: Proc. Amer. Math. Soc. 127 (1999), 1151-1161.
MSC (1991): Primary 34L40, 46F10, 47A55, 81Q15
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Abstract: Perturbations

of a selfadjoint operator

by symmetric finite rank operators

from $\mathcal{H}_2 (A)$ to $\mathcal{H}_{-2} (A)$ are studied. The finite dimensional family of selfadjoint extensions determined by

is given explicitly.

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Retrieve articles in Proceedings of the American Mathematical Society with MSC (1991): 34L40, 46F10, 47A55, 81Q15

S. Albeverio
Affiliation: Department of Mathematics, Ruhr-University Bochum, 44780 Bochum, Germany; SFB 237 Essen-Bochum-Düsseldorf, Germany; BiBoS Research Center, D 33615 Bielefeld, Germany; CERFIM, Locarno, Switzerland
Address at time of publication: Institute of Applied Mathematics, University of Bonn, Bonn, Germany
Email: albeverio@uni-bonn.de

P. Kurasov
Affiliation: Department of Mathematics, Stockholm University, 10691 Stockholm, Sweden; Alexander von Humboldt fellow, Department of Mathematics, Ruhr-University Bochum, 44780 Bochum, Germany; Department of Mathematical and Computational Physics, St.Petersburg University, 198904 St.Petersburg, Russia; Department of Mathematics, Luleå( ) University, 97187 Luleå, Sweden

DOI: 10.1090/S0002-9939-99-04992-8
PII: S 0002-9939(99)04992-8
Received by editor(s): August 1, 1997
Communicated by: David R. Larson
Copyright of article: Copyright 1999, American Mathematical Society

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