Results 41 to 50 of about 496,441 (252)

On stability of almost surjective functional equations of uniformly convex Banach spaces

open access: yesJournal of Inequalities and Applications, 2023
Let Y be a uniformly convex space with power type p , and let ( G , + ) $(G,+)$ be an abelian group, δ , ε ≥ 0 $\delta ,\varepsilon \geq 0$ , 0 < r < 1 $0 ...
Yuqi Sun, Wen Zhang
semanticscholar   +1 more source

Inertial Accelerated Algorithm for Fixed Point of Asymptotically Nonexpansive Mapping in Real Uniformly Convex Banach Spaces

open access: yesAxioms, 2021
In this work, we introduce a new inertial accelerated Mann algorithm for finding a point in the set of fixed points of asymptotically nonexpansive mapping in a real uniformly convex Banach space.
M. Harbau   +3 more
semanticscholar   +1 more source

Uniformly convex functions on Banach spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 2008
[EN] Given a Banach space (X,k · k), we study the connection between uniformly convex functions f : X ¿ R bounded above by k · kp , and the existence of norms on X with moduli of convexity of power type. In particular, we show that there exists a uniformly convex function f : X ¿ R bounded above by k · k2 if and only if X admits an equivalent norm with
Borwein, J.   +3 more
openaire   +4 more sources

The generalized projection methods in countably normed spaces

open access: yesJournal of Inequalities and Applications, 2021
Let E be a Banach space with dual space E ∗ $E^{*}$ , and let K be a nonempty, closed, and convex subset of E. We generalize the concept of generalized projection operator “ Π K : E → K $\Pi _{K}: E \rightarrow K$ ” from uniformly convex uniformly smooth
Sarah Tawfeek   +2 more
doaj   +1 more source

El espacio cociente y algunas propiedades geométricas de los espacios de Banach

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
We state some geometric properties of Banach spaces, such as uniformly convex spaces, uniformly non-square spaces, local uniformly convex spaces, strictly convex spaces, etc., and we analyze the problem of translating such properties to the quotient ...
Jose R. Morales
doaj   +1 more source

Remarks on a recent paper titled: “On the split common fixed point problem for strict pseudocontractive and asymptotically nonexpansive mappings in Banach spaces”

open access: yesJournal of Inequalities and Applications, 2021
In a recently published theorem on the split common fixed point problem for strict pseudocontractive and asymptotically nonexpansive mappings, Tang et al. (J. Inequal. Appl.
C. E. Chidume
doaj   +1 more source

Monotonicity and complex convexity in Banach lattices [PDF]

open access: yes, 2005
The goal of this article is to study the relations among monotonicity properties of real Banach lattices and the corresponding convexity properties in the complex Banach lattices. We introduce the moduli of monotonicity of Banach lattices. We show that a
Lee, Han Ju
core   +1 more source

Coarse infinite-dimensionality of hyperspaces of finite subsets [PDF]

open access: yes, 2021
We consider infinite-dimensional properties in coarse geometry for hyperspaces consisting of finite subsets of metric spaces with the Hausdorff metric. We see that several infinite-dimensional properties are preserved by taking the hyperspace of subsets ...
Weighill, Thomas   +2 more
core   +1 more source

A fixed point theorem for multivalued nonexpansive mappings in a uniformly convex Banach space

open access: yes, 1974
where H(A, B) denotes the Hausdorff distance between A and B. A point x e C is called a fixed point of T if x e Tx. Fixed point theorems for such mappings T have been established by Mar kin [11] for Hubert spaces, by Browder [2] for spaces having weakly ...
Teck-Cheong Lim
semanticscholar   +1 more source

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