Results 21 to 30 of about 2,213,198 (296)
Pattern classes of permutations via bijections between linearly ordered sets [PDF]
, 2008 A pattern class is a set of permutations closed under pattern involvement or, equivalently, defined by certain subsequence avoidance conditions. Any pattern class X which is atomic, i.e.
Ruškuc, Nik +2 more
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On fuzzy strongly g* - closed sets and g** - closed sets [PDF]
International Journal of Advances in Applied Mathematics and Mechanics, 2015 Hamid Reza Morad, Anahid Kamali
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Applications of sets and functions by using an open sets in Fuzzy neutrosophic topological spaces [PDF]
Neutrosophic Sets and SystemsThe definitions provided by the authors of the current study are offered together with a discussion of the recent advances that they have contributed. We begin with an introduction of the concepts of closed and open sets.
P. Basker, Broumi Said, J. Vennila
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On closed sets of ordinals [PDF]
Proceedings of the American Mathematical Society, 1974 We prove that every stationary set of countable ordinals contains arbitrarily long countable closed subsets. Call a set A of ordinals closed if and only if every nonempty subset of A which has an upper bound in A has its least upper bound in A. It is well known that there are BC a1 such that neither B nor a,1-B contains an uncountable closed subset.
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Applied General Topology, 2007 This paper is closely related to the work of Cao, Greenwood and Reilly in as it expands and completes their fundamental diagram by considering b-closed sets. In addition, we correct a wrong assertion in about βgs-spaces.
Maximilian Ganster, Markus Steiner
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Generalized h-Closed Sets in Topological Space [PDF]
, 2022 This study introduce a new type of closed sets in topology called Generalized h-closed sets (briefly, gh-closed) define as follow: E ⊆ χ be gh-closed set if CLh (E)⊆ U whenever E ⊆ U and U is open set in (&chi ...
Beyda S. Abdullah
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On ordinally closed sets [PDF]
Proceedings of the American Mathematical Society, 1978 Extensions of Cantor’s Intersection Theorem and Zalcwasser’s theorem on transfinite sequences of ambiguous sets of the first Baire class are given for linear sets.
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Set Covering with Our Eyes Closed [PDF]
SIAM Journal on Computing, 2008 Given a universe U of n elements and a weighted collection l of m subsets of U, the universal set cover problem is to a-priori map each element u epsi U to a set S(u) epsi l containing u, so that X sube U is covered by S(X)=UuepsiXS(u). The aim is finding a mapping such that the cost of S(X) is as close as possible to the optimal set-cover cost for X. (
Fabrizio Grandoni 0001 +5 more
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Closed measure zero sets [PDF]
, 1992 Bartoszynski, T. and S. Shelah, Closed measure zero sets, Annals of Pure and Applied Logic 58 (1992) 93–110.We study the relationship between the σ-ideal generated by closed measure zero sets and the ideals of null and meager sets.
Bartoszynski, Tomek, Shelah, Saharon
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Contra-continuous functions defined through ΛI-closed sets [PDF]
, 2021 We introduce some variants of contra-continuity in terms of ΛI-closed sets, namely contra-ΛI-continuous, contra quasi-ΛI-continuous and contra ΛI-irresolute functions.
SANABRIA, JOSÉ +3 more
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