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Revista Colombiana de Matemáticas
versão impressa ISSN 0034-7426
Rev.colomb.mat. v.39 n.2 Bogotá jul./dez. 2005
Salah Mecheri
Department of Mathematics. College of Science. King Saud University. P.O.Box 2455, Riyadh 11451. Saudi Arabia
e-mail: mecherisalah@hotmail.com
Abstract. In this paper we will investigate the normality in (WN) and (Y) classes.
Keywords and phrases. Normal operators, Hilbert space, hermitian operators.
2000 Mathematics Subject Classification. Primary: 47A15. Secondary: 47B20, 47A63.
Resumen. En este artículo nosotros investigaremos la normalidad en clases (WN) y (Y).
FULL TEXT IN PDF
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(Recibido en mayo de 2005. Aceptado en septiembre de 2005)