Results 31 to 40 of about 11,369 (179)
Menger remainders of topological groups
, 2016 In this paper we discuss what kind of constrains combinatorial covering properties of Menger, Scheepers, and Hurewicz impose on remainders of topological groups.
Bella, Angelo +2 more
core +1 more source
Products of Menger spaces in the Miller model
, 2018 We prove that in the Miller model the Menger property is preserved by finite products of metrizable spaces. This answers several open questions and gives another instance of the interplay between classical forcing posets with fusion and combinatorial ...
Zdomskyy, Lyubomyr
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A characterization of the Menger property by means of ultrafilter convergence [PDF]
, 2012 We characterize various Menger/Rothberger related properties by means of ultrafilter convergence, and discuss their behavior with respect to products.Comment: v.2; 13 pages, some improvements, some corrections, added introduction and divided into ...
Lipparini, Paolo
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A semifilter approach to selection principles [PDF]
, 2004 We develop the semifilter approach to the classical Menger and Hurewicz covering properties and show that the small cardinal g is a lower bound of the additivity number of the family of Menger subspaces of the Baire space, and under u< g every subset X ...
Zdomsky, Lubomyr
core +2 more sources
Congruences on Menger algebras [PDF]
, 2013 We discuss some types of congruences on Menger algebras of rank $n$, which are generalizations of the principal left and right congruences on semigroups.
Dudek, Wieslaw A. +1 more
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Chemie Ingenieur Technik, EarlyView.Die Akzeptanz recycelter Kohlenstofffasern in der Industrie erfordert eine hohe und standardisierte Faserqualität. In diesem Artikel werden mechanische Eigenschaften sowie die Oberflächenqualität neuer und recycelter Kohlenstofffasern ermittelt und verglichen, um Optimierungspotentiale für das CFK‐Recycling abzuleiten.
Philipp Karsten Niebel +7 more
wiley +1 more source
The Menger and projective Menger properties of function spaces with the set-open topology [PDF]
Mathematica Slovaca, 2019 Abstract For a Tychonoff space X and a family λ of subsets of X, we denote by C λ(X) the space of all real-valued continuous functions on X with the set-open topology. A Menger space is a topological space in which for every sequence of open covers 𝓤1, 𝓤2, … of the space there are finite sets 𝓕1 ⊂ 𝓤1, 𝓕2 ⊂
openaire +3 more sources
British Journal of Clinical Pharmacology, EarlyView.Aims Since their emergence on the drug market, synthetic cannabinoids (SC) are still gaining increasing importance in forensic toxicology. The representatives of the so‐called new psychoactive substances have in common that they have not undergone preclinical safety studies. Hence, knowledge on toxicokinetic (TK) data is sparse.
Adrian A. Doerr +10 more
wiley +1 more source
The combinatorics of the Baer-Specker group
, 2010 Denote the integers by Z and the positive integers by N. The groups Z^k (k a natural number) are discrete, and the classification up to isomorphism of their (topological) subgroups is trivial.
A. Krawczyk +34 more
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