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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:scopusA note on preservation of generalized fredholm spectra in berkani’s sense
ArticleAbstract: In this paper, we study the relationships between the spectra derived from B-Fredholm theory correspPalabras claves:B-Fredholm theory, Fredholm theory, Generalized spectra, Restrictions of operators, Single-valued extension propertyAutores:Carpintero C., Gutiérrez A., José E. Sanabria, Rosas E.Fuentes:scopusA note on preservation of spectra for two given operators
ArticleAbstract: We study the relationships between the spectra derived from Fredholm theory corresponding to two givPalabras claves:multiplication operator, Restriction of an operator, Semi-Fredholm spectra, Spectral propertyAutores:Carpintero C., Gutiérrez A., José E. Sanabria, Rosas E.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:scopusCHARACTERIZATIONS OF UPPER AND LOWER (α, β, θ, δ, I)-CONTINUOUS MULTIFUNCTIONS
ArticleAbstract: Let (X, τ) and (Y, σ) be topological spaces in which no separation axioms are assumed, unless explicPalabras claves:(α, I)-continuous multifunctions, P -continuous multifunctions, β, δ, θAutores:Carpintero C., Jorge E. Vielma, José E. Sanabria, Rosas E.Fuentes:scopusPerturbation theory for property (V<inf>e</inf>) and tensor product
ArticleAbstract: Given a complex Banach space X, we investigate the stable character of the property (VE ) for a bounPalabras claves:Commuting perturbations, Property (V ) E, Semi-Fredholm operator, tensor productAutores:Elvis Aponte, José E. Sanabria, Vasquez L.Fuentes:scopusOn inversely θ-semi-open and inversely θ-semi-closed functions
ArticleAbstract: In this paper, we introduce the concepts of inversely θ-semi-open and inversely θ-semi-closed functiPalabras claves:Inversely semi-open function, Inversely θ-semi-open function, Strongly θ-continuous function, θ-Closed set, θ-Open setAutores:José E. Sanabria, Rosas E., Vasquez L.Fuentes:scopusOn Λ<inf>I</inf><sup>s</sup>-sets and the related notions in ideal topological spaces
ArticleAbstract: In this paper, we define and study the notions of ΛIs-sets, ΛIs-closed sets and I-generalized semi-cPalabras claves:I-gs-closed, semi-I-open, semi-I-T space 1, Λ -closed I s, Λ -set I sAutores:Carpintero C., José E. Sanabria, Rosas E.Fuentes:scopusSoft frames in soft hilbert spaces
ArticleAbstract: In this paper, we use soft linear operators to introduce the notion of discrete frames on soft HilbePalabras claves:Self-adjoint operator, Soft frame, Soft Hilbert space, Soft inner product, Soft setsAutores:Ferrer O., José E. Sanabria, Sierra A.Fuentes:scopus