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Contra-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: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 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 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:scopusOn the hebkp_reditary character of certain spectral properties and some applications
ArticleAbstract: In this paper we study the behavior of certain spectral properties of an operator T on a proper closPalabras claves:Integral operators, Restrictions of operators, semi-Fredholm theory, spectral properties, Weyl type theoremsAutores:Carpintero C., Garcia O., José E. Sanabria, Malaver A., Rosas E.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:scopusS-paracompactness in ideal topological spaces
ArticleAbstract: In this paper, we study the notion of S-paracompact spaces in ideal topological spaces. We provide sPalabras claves:Almost-paracompact, Countably I-compact, I-paracompact, Ideal, Perfect functions, S-paracompact, Semi-openAutores:Carpintero C., Garcia O., José E. Sanabria, Rosas E., Salas-Brown M.Fuentes:scopusStrong variations of Weyl and Browder type theorems for direct sums and restrictions
ArticleAbstract: In this paper, we study the stability under direct sums and restrictions of some strong variations oPalabras claves:Direct sums, Property (V ) E, Restrictions, Semi-Fredholm operatorAutores:Carpintero C., Garcia O., José E. Sanabria, Rosas E., Vasquez L.Fuentes:scopus