Results 11 to 20 of about 114 (106)

Common Fixed Point Theory in Modified Intuitionistic Probabilistic Metric Spaces with Common Property (E.A.) [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
In this paper, we define the concepts of modified intuitionistic probabilistic metric spaces, the property (E.A.) and  the common property (E.A.) in   modified  intuitionistic probabilistic metric spaces.Then, by the commonproperty (E.A.), we prove some ...
Hamid Shayanpour, Asiyeh Nematizadeh
doaj   +1 more source

A Menger-like property of tree-cut width

open access: yesJournal of Combinatorial Theory, Series B, 2021
In 1990, Thomas proved that every graph admits a tree decomposition of minimum width that additionally satisfies a certain vertex-connectivity condition called leanness [A Menger-like property of tree-width: The finite case. Journal of Combinatorial Theory, Series B, 48(1):67-76, 1990].
Giannopoulou, Archontia   +3 more
openaire   +7 more sources

Economic vs. juristic thinking in Carl Menger’s principles of economics [PDF]

open access: yesEkonomski Anali, 2005
Austrian Economic School is increasingly being treated as one of the most significant and ever more influential bodies of ideas affecting the contemporary economic science.
Jandl Gerhard
doaj   +1 more source

On some properties of Hurewicz, Menger, and Rothberger [PDF]

open access: yesFundamenta Mathematicae, 1988
A metric space X has property C iff for every sequence \(\{\epsilon_ n ...
Miller, Arnold W., Fremlin, David H.
openaire   +1 more source

About uniformly Menger spaces [PDF]

open access: yesMathematica Moravica
Precompact type properties - precompactness (=totally precompactness), s-precompactness, pre-Lindelöfness, (=ℵ0-boundedness), t -boundedness - belong to the basic important invariants studied in the uniform topology.
Kanetov Bekbolot   +2 more
doaj   +1 more source

Strength Analysis of Cement Mortar with Carbon Nanotube Dispersion Based on Fractal Dimension of Pore Structure

open access: yesFractal and Fractional, 2022
Carbon nanotubes (CNTs) are considered among the ideal modifiers for cement-based materials. This is because CNTs can be used as a microfiber to compensate for the insufficient toughness of the cement matrix.
Jinjun Guo   +3 more
doaj   +1 more source

When is a space Menger at infinity?

open access: yesApplied General Topology, 2015
We try to characterize those Tychonoff spaces X such that $\beta X\setminus X$ has the Menger property.
Leandro Fiorini Aurichi, Angelo Bella
doaj   +1 more source

Selectively strongly star-Menger spaces and related properties

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2021
Summary: A space \(X\) is selectively strongly star-Menger (briefly, selSSM) if for each sequence \((\mathscr{U}_n : n \in\mathbb{N})\) of open covers of \(X\) and each sequence \((D_n : n \in\mathbb{N})\) of dense subspaces of \(X\), there exists a sequence \((F_n : n \in\mathbb{N})\) of finite subsets \(F_n \subset D_n\), \(n\in\mathbb{N}\), such ...
Bonanzinga M., Maesano F.
openaire   +3 more sources

Three-dimensional fractal structure with double negative and density-near-zero properties on a subwavelength scale

open access: yesMaterials & Design, 2020
We constructed a three-dimensional fractal acoustic metamaterial using the combination of zigzag channels and Menger fractal structures that had high structural symmetry and could extend into 3D space easily. Reflection and transmission coefficients were
Yu Liu   +7 more
doaj   +1 more source

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