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Network Structures from Selection Principles [PDF]

open access: yesPhysical Review Letters, 2004
We present an analysis of the topologies of a class of networks which are optimal in terms of the requirements of having as short a route as possible between any two nodes while yet keeping the congestion in the network as low as possible. Strikingly, we
A. Fabrikant   +14 more
core   +3 more sources

Principles for the selection and integration of educational multimedia materials [PDF]

open access: yesResearch in Learning Technology, 1998
A variety of educational multimedia resources, varying in both type and quality, is now available. The course tutor faces the problem of how to evaluate multimedia artefacts and integrate them into course delivery.
Tom Boyle
doaj   +4 more sources

Selection principles of polymeric frameworks for solid-state electrolytes of non-aqueous aluminum-ion batteries [PDF]

open access: yesFrontiers in Chemistry, 2023
Liquid electrolyte systems of aluminum-ion batteries (AIBs) have restrictive issues, such as high moisture sensitivity, strong corrosiveness, and battery leakage, so researchers have turned their attention to developing high safety, leak-free polymer ...
Zhijing Yu   +7 more
doaj   +2 more sources

A semifilter approach to selection principles [PDF]

open access: yes, 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   +7 more sources

Selection principles for Gaia [PDF]

open access: yesJournal of Theoretical Biology, 2022
The Gaia hypothesis considers the life-environment coupled system as a single entity that acts to regulate and maintain habitable conditions on Earth. In this paper we discuss three mechanisms which could potentially lead to Gaia: Selection by Survival, Sequential Selection and Entropic Hierarchy.
Arthur, Rudy, Nicholson, Arwen
openaire   +3 more sources

Some observations on a clopen version of the Rothberger property

open access: yesCubo, 2023
In this paper, we prove that a clopen version $S_1(\mathcal{C}_\mathcal{O}, \mathcal{C}_\mathcal{O})$ of the Rothberger property and Borel strong measure zeroness are independent.
Manoj Bhardwaj, Alexander V. Osipov
doaj   +1 more source

On almost set-Menger spaces in bitopological context

open access: yesAIMS Mathematics, 2022
In this paper, we define the $ ij $-almost-set Menger ($ ij $-ASM) property in bitopological spaces. We put up some equivalences of $ ij $-almost-set Menger bitopological spaces and investigate the behaviours of such spaces under some different types of ...
Necati Can Açıkgöz   +1 more
doaj   +1 more source

Selection principles and bitopological hyperspaces

open access: yesApplied General Topology, 2023
In this paper we continue to research relationships between closure-type properties of hyperspaces over a space X and covering properties of X. For a Hausdorff space X we denote by 2X the family of all closed subsets of X.
Alexander V. Osipov
doaj   +1 more source

On Star Selection Principles Theory

open access: yesAxioms, 2023
The aim of this paper is to review up-to-date recent results in the field of star selection principles, a rapidly growing area of topology, and to present a few new results.
Ljubiša D. R. Kočinac
doaj   +1 more source

Selection principles: s-Menger and s-Rothberger-bounded groups

open access: yesApplied General Topology, 2022
In this paper, selection principles are defined and studied in the realm of irresolute topological groups. Especially, s-Menger-bounded and s-Rothberger-bounded type covering properties are introduced and studied.
Muhammad Asad Iqbal, Moiz ud Din Khan
doaj   +1 more source

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