A topological characterization of the product of two closed operators

• Autorzy: Bekkai Messirdi , Mohammed Hichem Mortad , Abdelhalim Azzouz , Ghouti Djellouli
• Języki publikacji: EN

Abstrakty

EN

The purpose of this work is to give a topological condition for the usual product of two closed operators acting in a Hilbert space to be closed.

Kategorie tematyczne

• 47A05: General (adjoints, conjugates, products, inverses, domains, ranges, etc.)

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Colloquium Mathematicum
• Rocznik: 2008
• Tom: 112
• Numer: 2
• Strony: 269-278

Daty

wydano

2008

Twórcy

autor

Bekkai Messirdi

• Département de Mathématiques, Université d'Oran (Es-senia), B.P. 1524, El Menouar, Oran 31000, Algeria

autor

Mohammed Hichem Mortad

• Département de Mathématiques, Université d'Oran (Es-senia), B.P. 1524, El Menouar, Oran 31000, Algeria

autor

Abdelhalim Azzouz

• Département de Mathématiques, Centre Universitaire de Saïda, Saïda 20000, Algeria

autor

Ghouti Djellouli

• Département de Mathématiques, Centre Universitaire de Saïda, Saïda 20000, Algeria

Identyfikatory

DOI

10.4064/cm112-2-4