Faculty of Sciences of Sfax

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-numerical radius of operators and related inequalities

12 citations

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3 papers

math.FA2022★ 2 cited

Existence results for nonexpansive multi-valued operators and nonlinear integral inclusions

Khaled Ben Amara, Aref Jeribi, Najib Kaddachi

In this paper, we establish some new variants of fixed point theorems for a large class of countably nonexpansive multi-valued mappings. Some fixed point theorems for the sum and t…

math.FA2022★ 4 cited

Generalized form of fixed-point theorems in generalized Banach algebra relative to the weak topology with an application

Aref Jeribi, Najib Kaddachi, Zahra Laouar

In this paper, a general hybrid fixed point theorem for the contractive mappings in generalized Banach spaces is proved via measure of weak non-compactness and it is further applie…

math.FA2021★ 12 cited

Generalized $A$ -numerical radius of operators and related inequalities

Pintu Bhunia, Kais Feki, Kallol Paul

Let $A$ be a non-zero positive bounded linear operator on a complex Hilbert space $(H, ⟨ \cdot, \cdot ⟩)$ . Let $ω_{A} (T)$ denote the $A$ -numerical radius of an oper…

Existence results for nonexpansive multi-valued operators and nonlinear integral inclusions

Generalized form of fixed-point theorems in generalized Banach algebra relative to the weak topology with an application

Generalized A-numerical radius of operators and related inequalities

Generalized $A$ -numerical radius of operators and related inequalities