Perturbations by Quadratic Forms and Invariance of Essential Spectra.

Rainer Hempel

Mathematische Zeitschrift (1984)

  • Volume: 185, page 281-290
  • ISSN: 0025-5874; 1432-1823

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Hempel, Rainer. "Perturbations by Quadratic Forms and Invariance of Essential Spectra.." Mathematische Zeitschrift 185 (1984): 281-290. <http://eudml.org/doc/173402>.

@article{Hempel1984,
author = {Hempel, Rainer},
journal = {Mathematische Zeitschrift},
keywords = {invariance of essential spectra; relative compactness; elliptic regularization; small perturbation},
pages = {281-290},
title = {Perturbations by Quadratic Forms and Invariance of Essential Spectra.},
url = {http://eudml.org/doc/173402},
volume = {185},
year = {1984},
}

TY - JOUR
AU - Hempel, Rainer
TI - Perturbations by Quadratic Forms and Invariance of Essential Spectra.
JO - Mathematische Zeitschrift
PY - 1984
VL - 185
SP - 281
EP - 290
KW - invariance of essential spectra; relative compactness; elliptic regularization; small perturbation
UR - http://eudml.org/doc/173402
ER -

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