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Mostrando ítems 1-10 de 16
Artículo
The τ-fixed point property for left reversible semigroups
(Springer Open, 2015-12)
In this article we use the generalized Gossez-Lami Dozo property and the Opial condition to study the fixed point property for left reversible semigroups in separable Banach spaces. As a consequence, some previous results ...
Tesis Doctoral
Métricas equivalentes y existencia de puntos fijos para aplicaciones de tipo no-expansivo
(2015-06-22)
La Teoría Métrica de Punto Fijo estudia la existencia de tales puntos bajo condiciones que dependen de la métrica considerada y que no son invariantes si cambiamos la métrica por otra equivalente. Esta teoría tiene sus ...
Tesis Doctoral
Geometry in metric spaces and fixed point theorems for classes of nonexpansive type mappings
(2023-03-27)
The main purpose of this work is to present recent results obtained on the existence of Fxed points for nonexpansive mappings and orbit-nonexpansive mappings in the general context of metric spaces. Additionally, our ...
Artículo
Fixed point property for general topologies in some Banach spaces
(Cambridge University Press, 2004)
We study the fixed point property with respect to general vector topologies in L-embedded Banach spaces. Considering a class of topologies in l1 such that the standard basis is convergent, we characterize those of them ...
Artículo
Density of the set of renormings in c0 without asymptotically isometric copies of c0 and failing to have the fixed point property
(Casa Cărţii de Ştiinţă Cluj-Napoca, 2013)
It is proved that the family of all equivalent norms in c0 without asymptotically isometric copies of c0 and failing to have the fixed point property is dense in the set of all renormings of c0.
Tesis Doctoral
Propiedad de punto fijo, normas equivalentes y espacios de funciones no- conmutativos
(2011-11-24)
Sean C un conjunto y ... color: black; font-size: 11.5pt">T : C → C un operador. Decimos que T tiene un punto fjo si existe x ∈ C tal que Tx = x. Algunas propiedades acerca del operador T y el dominio C pueden asegurar la ...
Artículo
Near-infinity concentrated norms and the fixed point property for nonexpansive maps on closed, bounded, convex sets
(Elsevier, 2018-08-01)
In this paper we define the concept of a near-infinity concentrated norm on a Banach space X with a boundedly complete Schauder basis. When k · k is such a norm, we prove that (X, k · k) has the fixed point property (FPP); ...
Artículo
Weak compactness and fixed point property for affine mappings
(Elsevier, 2004-04-01)
It is shown that a closed convex bounded subset of a Banach space is weakly compact if and only if it has the generic fixed point property for continuous affine mappings. The class of continuous affine mappings can be ...
Tesis Doctoral
Estabilidad de la propiedad del punto fijo para aplicaciones no-expansivas
(1998)
La teoría métrica del punto fijo estudia la existencia de dichos puntos para aplicaciones definidas en un espacio métrico y bajo condiciones que no son invariantes al pasar a métricas equivalentes. En este aspecto, el ...
Artículo
The fixed-point property in Banach spaces containing a copy of c0
(Hindawi, 2003)
We prove that every Banach space containing an isomorphic copy of c0 fails to have the fixed-point property for asymptotically nonexpansive mappings with respect to some locally convex topology which is coarser than the ...