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Sur la Non Compatibilité de l'Equivalence de Calkin Avec le Calcul Fonctionnel de Nagy-Foias

Published online by Cambridge University Press:  20 November 2018

J. Esterle  and
F. Zarouf
J. Esterle
Affiliation:
U.E.R. de Mathématiques Université de Bordeaux I 33405 Talence, France
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Abstract

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Nous montrons qu'il existe deux contractions T1 et T2 de classe C0 telles que T1 — T2 soit compact et une fonction intérieure h telle que h(T1) — h(T2) soit non compact.

Keywords

47A6046K10
Type
Research Article
Information
Canadian Mathematical Bulletin , Volume 33 , Issue 3 , 01 September 1990 , pp. 261 - 263
Copyright
Copyright © Canadian Mathematical Society 1990

References

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