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dc.contributor.authorPachon Rubiano, Néstor Raúl
dc.date.accessioned2021-05-05T18:11:32Z
dc.date.accessioned2021-10-01T17:20:51Z
dc.date.available2021-05-05
dc.date.available2021-10-01T17:20:51Z
dc.date.issued2018
dc.identifier.issn1307-5543
dc.identifier.urihttps://repositorio.escuelaing.edu.co/handle/001/1393
dc.description.abstractThe concept of closed sets is a central object in general topology. In order to extend many of important properties of closed sets to a larger families, Norman Levine initiated the study of generalized closed sets. In this paper we introduce, via ideals, new generalizations of closed subsets, which are strong forms of the Ig-closed sets, called ρIg-closed sets and closed-I sets. We present some properties and applications of these new sets and compare the ρIg-closed sets and the closed-I sets with the g-closed sets introduced by Levine. We show that I-closed and closed-I are independent concepts, as well as I * -closed sets and closed-I concepts.spa
dc.description.abstractEl concepto de conjunto cerrado es un objeto central en la topología general. Con el fin de extender muchas de las propiedades importantes de los conjuntos cerrados a familias más amplias, Norman Levine inició el estudio de los conjuntos cerrados generalizados. En este trabajo introducimos, a través de ideales, nuevas generalizaciones de subconjuntos cerrados, que son formas fuertes de conjuntos cerrados. que son formas fuertes de los conjuntos cerrados Ig, llamados conjuntos cerrados ρIg y conjuntos cerrados-I. En presentamos algunas propiedades y aplicaciones de estos nuevos conjuntos y comparamos los conjuntos ρIg-cerrados y los conjuntos cerrados-I con los conjuntos g-cerrados introducidos por Levine. Demostramos que I-cerrado y cerrado-I son conceptos independientes, al igual que los conjuntos I * -cerrados y los conceptos cerrados-I.spa
dc.format.extent16 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.language.isoengspa
dc.publisherBusiness Global LLCspa
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/spa
dc.sourcehttps://www.ejpam.com/index.php/ejpam/article/view/3131/608spa
dc.titleBetween closed and Ig-closed setsspa
dc.typeArtículo de revistaspa
dc.description.notesNéstor Raúl Pachón Rubiano Departamento de Matemáticas, Escuela Colombiana de Ingeniería, Bogotá, Colombia. Departamento de Matemáticas, Universidad Nacional, Bogotá, Colombia.spa
dc.description.notesEmail addresses: nestor.pachon@escuelaing.edu.co, nrpachonr@unal.edu.co (N.R. Pachón)spa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
dc.contributor.researchgroupMatemáticasspa
dc.identifier.doi10.29020/nybg.ejpam.v11i2.3131
dc.identifier.urldoi.org/10.29020/nybg.ejpam.v11i2.3131
dc.publisher.placeNew Yorkeng
dc.relation.citationeditionEuropean Journal of Pure and Applied Mathematics, Vol. 11, No. 1, 2018, 299-314spa
dc.relation.citationendpage314spa
dc.relation.citationissue1spa
dc.relation.citationstartpage299spa
dc.relation.citationvolume11spa
dc.relation.indexedN/Aspa
dc.relation.ispartofjournalEuropean Journal of Pure and Applied Mathematicseng
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dc.relation.referencesN. R. Pachón. ρC(I)-compact and ρI-QHC spaces. Int. Jour. of Pure and App. Math., 108(2):199–214, 2016.eng
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dc.relation.referencesSuppose that X = ∪ α∈Λ Wα, where Wα ∈ τ ⊕ I for each α ∈ Λ. For all α ∈ Λ, there exist Vα ∈ τ and a collection {Ij}j∈Λα of elements in I, such that Wα = Vα ∪ ∪ j∈Λα Ij . Hence X = ∪ α∈Λ Vα ∪ ∪ α∈Λ ∪ j∈Λα Ij . Then X\ ∪ α∈Λ Vα ∈ I⊛ and since (X, τ, I ⊛) is ρI ⊛-compact, there exists Λ0 ⊆ Λ, finite, with X\ ∪ α∈Λ0 Vα ∈ I⊛. This implies that X\ ∪ α∈Λ0 Wα ∈ I⊛.eng
dc.relation.referencesSuppose that X\ ∪ α∈Λ Vα ∈ I, where {Vα}α∈Λ is a collection of elements in τ . There exists I ∈ I such that X\ ∪ α∈Λ Vα = I, and so X = I∪ ∪ α∈Λ Vα. Given that (X, τ ⊕ I) is compact there exists Λ0 ⊆ Λ, finite, with X = I∪ ∪ α∈Λ0 Vα. Hence X\ ∪ α∈Λ0 Vα ⊆ I ∈ I and X\ ∪ α∈Λ0 Vα ∈ I.eng
dc.relation.referencesSuppose that F\ ∪ α∈Λ Vα ∈ I, where {Vα}α∈Λ is a collection of elements in τ and F is closed in (X, τ ). There exists J ∈ I with F\ ∪ α∈Λ Vα = J, and so F ⊆ J ∪ ∪ α∈Λ Vα. Given that ( X, τ ⊕ I ) is C-compact and F is closed in ( X, τ ⊕ I ) , there exists Λ0 ⊆ Λ, finite, with F ⊆ adhτ⊕I (J) ∪ ∪ α∈Λ0 adhτ⊕I (Vα) ⊆ J ∪ ∪ α∈Λ0 Vα. Hence F\ ∪ α∈Λ0 Vα ⊆ J ∈ I and F\ ∪ α∈Λ0 Vα ∈ I. Parts (2) and (5) have similar demonstrations. □eng
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.creativecommonsAtribución 4.0 Internacional (CC BY 4.0)spa
dc.subject.armarcMateméticas
dc.subject.armarcAcciones de grupos (Matemáticas)
dc.subject.proposalg-closedspa
dc.subject.proposalIg-closedspa
dc.subject.proposalI-compactspa
dc.subject.proposalI-normalspa
dc.subject.proposalI-QHCspa
dc.subject.proposalρC(I)-compact.spa
dc.subject.proposalg-closedspa
dc.subject.proposalIg-closedspa
dc.subject.proposalI-compactspa
dc.subject.proposalI-normalspa
dc.subject.proposalI-QHCspa
dc.subject.proposalρC(I)-compact.spa
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1spa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/articlespa
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTspa


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