Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Eliza Wajch"'
Publikováno v:
Results in Mathematics. 78
A topological space is iso-dense if it has a dense set of isolated points, and it is scattered if each of its non-empty subspaces has an isolated point. In $$\textbf{ZF}$$ ZF (i.e. Zermelo–Fraenkel set theory without the Axiom of Choice ($$\textbf{
Autor:
Kyriakos Keremedis, Eliza Wajch
Publikováno v:
Periodica Mathematica Hungarica. 85:448-473
Autor:
Kyriakos Keremedis, Eliza Wajch
Publikováno v:
Portugaliae Mathematica. 78:281-321
Publikováno v:
Annals of Pure and Applied Logic. 174:103283
Publikováno v:
Monatshefte für Mathematik. 196:67-102
In the absence of the axiom of choice, the set-theoretic status of many natural statements about metrizable compact spaces is investigated. Some of the statements are provable in $$\mathbf {ZF}$$ ZF , some are shown to be independent of $$\mathbf {ZF
Publikováno v:
Results in Mathematics. 77
Autor:
Kyriakos Keremedis, Eliza Wajch
Publikováno v:
Topology and its Applications. 258:79-99
For a compactification $\alpha X$ of a Tychonoff space $X$, the algebra of all functions $f\in C(X)$ that are continuously extendable over $% \alpha X$ is denoted by $C_{\alpha}(X)$. It is shown that, in a model of $\textbf{ZF}$, it may happen that a
Autor:
Eliza Wajch
Publikováno v:
International Journal of Approximate Reasoning. 106:51-62
Important in pairwise comparisons methods (PC) concepts of reciprocal matrices, consistency conditions and priority vectors of consistent PC matrices are investigated in a more general framework where mappings take values in a not necessarily abelian
Publikováno v:
Filomat. 33:2061-2071
Let $(X,\tau)$ be a Hausdorff space, where $X$ is an infinite set. The compact complement topology $\tau^{\star}$ on $X$ is defined by: $\tau^{\star}=\{\emptyset\} \cup \{X\setminus M, \text{where $M$ is compact in $(X,\tau)$}\}$. In this paper, prop
Autor:
Kyriakos Keremedis, Eliza Wajch
In the absence of the axiom of choice, new results concerning sequential, Fr\'echet-Urysohn, $k$-spaces, very $k$-spaces, Loeb and Cantor completely metrizable spaces are shown. New choice principles are introduced. Among many other theorems, it is p
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