Geodesic
Exponentials of bounded normal operators
Aicha Chaban1 ; Mohammed Hichem Mortad2
1 Department of Mathematics University of Chlef (Hassiba Benbouali) BP 151, Chlef, 20000, Algeria
2 Department of Mathematics University of Oran BP 1524, El Menouar, Oran 31000, Algeria and BP 7085 Seddikia, Oran 31013, Algeria
Colloquium Mathematicum, Tome 133 (2013) no. 2, pp. 237-244.

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

The present paper is mainly concerned with equations involving exponentials of bounded normal operators. Conditions implying commutativity of normal operators are given, without using the known $2\pi i$-congruence-free hypothesis. This is a continuation of a recent work by the second author.
DOI : 10.4064/cm133-2-10
Keywords: present paper mainly concerned equations involving exponentials bounded normal operators conditions implying commutativity normal operators given without using known i congruence free hypothesis continuation recent work second author

Aicha Chaban 1 ; Mohammed Hichem Mortad 2

1 Department of Mathematics University of Chlef (Hassiba Benbouali) BP 151, Chlef, 20000, Algeria
2 Department of Mathematics University of Oran BP 1524, El Menouar, Oran 31000, Algeria and BP 7085 Seddikia, Oran 31013, Algeria 
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Aicha Chaban; Mohammed Hichem Mortad. Exponentials of bounded normal operators. Colloquium Mathematicum, Tome 133 (2013) no. 2, pp. 237-244. doi : 10.4064/cm133-2-10. http://geodesic.mathdoc.fr/articles/10.4064/cm133-2-10/

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