Perturbations of Selfadjoint Operators with Point Spectra by Restrictions and Selfadjoint Extensions.
Mathematische Annalen, Tome 256 (1981), pp. 233-248
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Konrad Schmüdgen. Perturbations of Selfadjoint Operators with Point Spectra by Restrictions and Selfadjoint Extensions.. Mathematische Annalen, Tome 256 (1981), pp. 233-248. http://geodesic.mathdoc.fr/item/MAN_1981__256_163508/
@article{MAN_1981__256_163508,
author = {Konrad Schm\"udgen},
title = {Perturbations of {Selfadjoint} {Operators} with {Point} {Spectra} by {Restrictions} and {Selfadjoint} {Extensions.}},
journal = {Mathematische Annalen},
pages = {233--248},
year = {1981},
volume = {256},
zbl = {0443.47024},
url = {http://geodesic.mathdoc.fr/item/MAN_1981__256_163508/}
}