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A 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: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: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:scopusFurther 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:scopusS-I-Convergence of sequences
ArticleAbstract: In this article, we use the notions of a semi-open set and topological ideal, in order to define andPalabras claves:I-convergence, Irresolute function, S-I-convergence, Semi-closure, Semi-compactness, Semi-continuous function, Semi-open setsAutores:Guevara A., 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:scopusNew Inequalities On Generalized m-Convexity On Fractal Sets
ArticleAbstract: In this research, we study some algebraic and topological properties of generalized m-convex functioPalabras claves:Convex function, Fractal set, Generalized m-Convex Function, m-Convex FunctionAutores:José E. Sanabria, Sánchez R.V.C., Trousselot 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:scopus