Geodesic
On the distance between spectra
Mathematica Applicanda, Tome 12 (1985) no. 24, pp. 93-103.

Voir la notice de l'article provenant de la source Annales Societatis Mathematicae Polonae Series

The author gives an explicit estimate of the distance between the spectra of two bounded operators on a finite-dimensional Hilbert space.
DOI : 10.14708/ma.v12i24.1624
Classification : 47A10 (47A55)
Mots-clés : Spectrum, resolvent, Perturbation theory 
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     title = {On the distance between spectra},
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Andrej Pokrzywa. On the distance between spectra. Mathematica Applicanda, Tome 12 (1985) no. 24, pp.  93-103. doi : 10.14708/ma.v12i24.1624. http://geodesic.mathdoc.fr/articles/10.14708/ma.v12i24.1624/

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