Geodesic
Continuity Properties of Operator Spectra
Canadian journal of mathematics, Tome 29 (1977) no. 2, pp. 429-437

Voir la notice de l'article provenant de la source Cambridge University Press

This paper is devoted to the study of convergence and variation of operator spectra with respect to the distance G of Gokhburg and Markus [5] for subspaces and linear operators in a Banach space. We use the convention of Kato [7] and refer to convergence with respect to G as generalizedconvergence. 
Bezak, Nicholas J.; Eisen, Martin. Continuity Properties of Operator Spectra. Canadian journal of mathematics, Tome 29 (1977) no. 2, pp. 429-437. doi: 10.4153/CJM-1977-045-x
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