Property of being semi-Kelley for the cartesian products and hyperspaces
نویسندگان
چکیده
منابع مشابه
Smoothness and the property of Kelley
Interrelations between smoothness of a continuum at a point, pointwise smoothness, the property of Kelley at a point and local connectedness are studied in the paper.
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The main purpose of this paper is to study the property of Kelley in nonmetric continua using inverse systems and limits.
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We investigate two closure-type properties, the Reznichenko property and the Pytkeev property, in hyperspace topologies.
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In this paper examples are given to show that s-regular and s-normal are independent; that s-normal, and s-regular are not semi topological properties; and that (S(X),E(X)) need not be I even if (X,T) is compact, s-normal, s-regular, semi-T2, and T0. Also, it is shown that for each space (X,T), (S(X) ,E(X)), (S(XO) ,E(Xo)), and (S(Xs0) ,E(Xs0)) are homeomorphic, where (X0, Q(X0)) is the T0-iden...
متن کاملOn mapping properties and the property of Kelley
Mapping conditions are studied under which a continuum having the property of Kelley has this property hereditarily. The obtained results, related mainly to confluent mappings, extend some known assertions of the subject.
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ژورنال
عنوان ژورنال: Commentationes Mathematicae Universitatis Carolinae
سال: 2017
ISSN: 0010-2628,1213-7243
DOI: 10.14712/1213-7243.2015.217