Quotient operators: new generation of linear operators Page 1 Functional Analysis,
Approximation and Computation 7 (1) (2015), 85–93 Published by Faculty of Sciences and …

In this article, we aim to provide a satisfactory algebraic description of the set of affiliated
operators for von Neumann algebras. Let be a von Neumann algebra acting on a Hilbert …

The purpose of this paper is to introduce some new metrics on the set C (H) of closed
densely defined operators on a Hilbert space H and we characterize the closure of the …

Résumé L'objectif principal de notre thèse est de réaliser une étude complète sur la classe
des opérateurs quotients d'opérateurs linéaires bornés définis sur un espace de Hilbert …

We study in this paper the concept of closable-semiclosed operators in a Hilbert space and
their algebraic and topological structures are investigated. We establish a non-trivial …

This paper has triple main objectives. The first objective is an analysis of some auxiliary
results on closedness and boundedness of linear relations. The second objective is to …

The quotient operators are introduced in order to extend the class of all closed operators
acting on a Hilbert space H. In fact, Kaufman proved in Kaufman (Proc Am Math Soc 72: 531 …

In this paper, almost closed subspaces and almost closed linear operators are described in
a Hilbert space. We show Neubauer's lemma and we give necessary and sufficient …

Quotient of linear relations and applications Page 1 Asian-European Journal of Mathematics
Vol. 12, No. 3 (2019) 1950047 (20 pages) c© World Scientific Publishing Company DOI …

La région entre Constantine et Oued Athmenia constitue la partie méridionale du bassin
néogène Mila-Constantine. Ce bassin se situe à la convergence des hautes plaines et le …