Paper's Title:

Closedness and Skew Self-Adjointness of Nadir's Operator

Author(s):

Mostefa Nadir and Abdellatif Smati

Department of Mathematics,
University of Msila 28000,
ALGERIA.
E-mail: mostefanadir@yahoo.fr
E-mail: smatilotfi@gmail.com

Abstract:

In this paper, we present some sufficient conditions which ensure the compactness, the normality, the positivity, the closedness and the skew self-adjointness of the unbounded Nadir's operator on a Hilbert space. We get also when the measurement of its adjointness is null and other related results are also established.

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