Results 21 to 30 of about 427 (213)
On I-Extremally Disconnected Spaces
, 2007 We have introduced and investigated the notion of I-extremal disconnectedness on ideal topological spaces. First, we found that the notions of extremal disconnectedness and I-extremal disconnectedness are independent of each other.
Yüksel, Şaziye +2 more
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Minimal extremally disconnected Hausdorff spaces
General Topology and its Applications, 1978 Extremally disconnected Hausdorff (abbreviated EDH) spaces that have no strictly coarser EDH topology are called minimal EDH. In this paper minimal EDH spaces are characterized in terms of the Stone-Čech compactification of such spaces.
Woods, R.Grant, Porter, Jack R.
core +3 more sources
On some properties of the space of minimal prime ideals of 𝐶𝑐 (𝑋) [PDF]
Categories and General Algebraic Structures with Applications, 2022 In this article we consider some relations between the topological properties of the spaces X and Min(Cc (X)) with algebraic properties of Cc (X). We observe that the compactness of Min(Cc (X)) is equivalent to the von-Neumann regularity of qc (X ...
Zahra Keshtkar +3 more
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Extremally disconnected spaces [PDF]
Proceedings of the American Mathematical Society, 1967 Dona Papert Strauss
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The nonexistence of extremally disconnected free topological groups
Topology and Its Applications, 2013 An old question of Arkhangel'skii's asks whether a nondiscrete extremally disconnected topological group can be constructed in \(ZFC\). The author proves that, given a topological space \(X\), if there is an extremally disconnected group topology on the free Boolean group \(B(X)\) which satisfies an additional natural condition, then either \(X\) is a \
exaly +3 more sources
Disconnection in the Alexandroff duplicate
Applied General Topology, 2021 It was demonstrated in [2] that the Alexandroff duplicate of the Čech-Stone compactification of the naturals is not extremally disconnected. The question was raised as to whether the Alexandroff duplicate of a non-discrete extremally disconnected space ...
Papiya Bhattacharjee +2 more
doaj +1 more source
Applied General Topology, 2022 We discuss spaces and the Alexandroff duplicates of those spaces that admit a Č-S embedding into the Čech-Stone compactification of a discrete space.
Andrzej A Szymanski
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A CHARACTERIZATION OF BAER-IDEALS [PDF]
Journal of Algebraic Systems, 2014 An ideal I of a ring R is called right Baer-ideal if there exists an idempotent e 2 R such that r(I) = eR. We know that R is quasi-Baer if every ideal of R is a right Baer-ideal, R is n-generalized right quasi-Baer if for each I E R the ideal In is right
Ali Taherifar
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The extremal function for disconnected minors
Journal of Combinatorial Theory, Series B, 2017 For a graph $H$ let $c(H)$ denote the supremum of $|E(G)|/|V(G)|$ taken over all non-null graphs $G$ not containing $H$ as a minor. We show that $$c(H) \leq \frac{|V(H)|+\mathrm{comp}(H)}{2}-1,$$ when $H$ is a union of cycles, verifying conjectures of Reed and Wood, and Harvey and Wood.
Endre Csóka +4 more
openaire +4 more sources
A Note On Neutrosophic Chaotic Continuous Functions [PDF]
Neutrosophic Sets and Systems, 2019 Many real time problems are based on uncertainity and chaotic environment. To demonstrate this ambiguous suituation more precisely we intend to amalgamate the ideas of chaos theory and neutrosophy.
T. Madhumathi +2 more
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