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Further characterizations of property (Vπ) and some applications
ArticleAbstract: We carry out characterizations with techniques providedby the localspectraltheory ofboundedlinear opPalabras claves:Drazin invertible operator, Property (V ). rr, Semi-Fredholm operator, Serni-Weyl operatorAutores:Elvis Aponte, Jhixon Macías, José E. Sanabria, José SotoFuentes:scopusContra-continuous functions defined through Λ<inf>I</inf>-closed sets
ArticleAbstract: We introduce some variants of contra-continuity in terms of ΛI-closed sets, namely contra-ΛIcontinuoPalabras claves:Function -continuous function I, Ideal, Local function, Λ -closed set-continuous I, Λ -set IAutores:Carpintero C., Granados C., José E. Sanabria, Rosas E.Fuentes:scopusA Fredholm theory on Krein spaces and its application to Weyl-type theorems and homogeneous equations
ArticleAbstract: In this paper, we review the approach presented by An and Heo on the study of Weyl-type theorems forPalabras claves:Fredholm theory, Homogeneous equation, Krein space, Weyl’s theoremAutores:Buelvas Y.O., José E. Sanabria, Ojito D.P.Fuentes:scopusA note on strongly δθ-I-continuous functions
ArticleAbstract: In this article, we investigate some properties of strongly δθ-I-continuous functions and other typePalabras claves:Ideals, δ-local function, δθ-I-open setAutores:José E. Sanabria, Lozada-Yavina R., Tormet J.Fuentes:scopusAlmost contra (I, J)-continuous multifunctions
ArticleAbstract: The purpose of the present paper is to introduce, study and characterize the upper and lower almostPalabras claves:Contra (I, J)-continuous multifunctions, I-regular closed set, I-regular open set, Upper almost contra (I, J)-continuous multifunctions, Weakly (I, J)-continuous multifunctionsAutores:Carpintero C., José E. Sanabria, Rosas E.Fuentes:scopusOn A generalization of strongly η -convex functions via fractal sets
ArticleAbstract: The purpose of this paper is to study a generalization of strongly η-convex functions using the locaPalabras claves:Convex function, Fractal set, Generalized Strongly η -Convex Function, Strongly η -Convex FunctionAutores:José E. Sanabria, Robles Z., Sánchez R.V.C.Fuentes:scopusOn generalized property (v) for bounded linear operators
ArticleAbstract: An operator T acting on a Banach space X has property (gw) if σa(T) \ σSBF-+ (T) = E(T), where σa(T)Palabras claves:Generalized weyl's theorem, Property (gv), Property (v), Semi-BFredholm operator.Autores:Carpintero C., Garcia O., José E. Sanabria, Rosas E.Fuentes:scopusOn generalized semi B-Fredholm operators
ArticleAbstract: In this paper we study two new classes of bounded linear operators acting on a Banach space X calledPalabras claves:Generalized semi B-Fredholm operators, Operators with finite-range power, Quasi-Fredholm operator, Saphar operatorAutores:Carpintero C., Ferrer O., Garcia O., José E. SanabriaFuentes:scopusOn nearly S-Paracompactness
ArticleAbstract: The objective of the present work is to introduce the notion of α-nearly S-paracompact subset, whichPalabras claves:Nearly S-paracompact space, Perfect function, Product space, Regular open set, Semi-open set, Sum space, α-nearly S-paracompact subsetAutores:Blanco C., Ferrer O., José E. SanabriaFuentes:scopusOn strong variations of weyl type theorems
ArticleAbstract: An operator T acting on a Banach space X satisfies the property (UWE) if (Formula Presented), wherePalabras claves:Property (UWE), Property (VE), Property (WE), Semi-Fredholm operator, Weyl's theoremAutores:Carpintero C., Garcia O., José E. Sanabria, Rosas E., Vasquez L.Fuentes:scopus