Mappings of type generalized de La Vallée Poussin’s mean

almost convergence through the generalized de la vallée-poussin mean

lorentz characterized the almost convergence through the concept of uniform convergence of de lavallée-poussin mean. in this paper, we generalize the notion of almost convergence by using the concept ofinvariant mean and the generalized de la vallée-poussin mean. we determine the bounded linear operators forthe generalized σ-conservative, σ-regular and σ-coercive matrices.

Formes hémorragiques graves de la fièvre de la vallée du Rift: à propos de 5 cas

Résumé La fièvre de la vallée du Rift (FVR) est une arbovirose due à un virus à ARN appartenant à la famille de Bunyaviridae (genre phlebovirus). C’est une zoonose touchant principalement les animaux mais pouvant aussi contaminer l'homme, soit directement par la manipulation des viandes ou avortons d’animaux malades ou indirectement par la piqure de moustiques infectées (Aèdes sp, anophèles sp,...

Polynomial approximation on spheres - generalizing de la Vallée-Poussin

For trigonometric polynomial approximation on a circle, the de la Vallée Poussin construction has two notable properties as the polynomial degree goes to infinity: it yields uniform convergence for all continuous functions; yet it also exhibits arbitrarily fast convergence for smooth functions. It is allowed to have both properties because it is a uniformly bounded but not positive projection o...

Endpoints of generalized $phi$-contractive multivalued mappings of integral type

Recently‎, some researchers have established some results on existence of endpoints for multivalued mappings. In particular, Mohammadi and Rezapour's [Endpoints of Suzuki type quasi-contractive multifunctions, U.P.B. Sci. Bull., Series A, 2015] used the technique of $alpha-psi$-contractive mappings, due to Samet et al. (2012), to give some results about endpoints of Suzuki type quasi-contractiv...

Etude des anticorps maternels des poussins issus de parents immuns ou hyperimmuns contre la maladie de Newcastle