Results 41 to 50 of about 3,669 (222)

Hyperbolizing Hyperspaces

open access: yesMichigan Mathematical Journal, 2011
The aim of this paper is to establish connections between a metric space \(X\) and the large-scale geometry (in the sense of Gromov) of the hyperspace \(\mathcal H(X)\) of its non-degenerate closed bounded subsets, and to study the mappings on \(X\) in terms of the induced mappings on \(\mathcal H(X)\). The metric space \(X\) can be identified with the
openaire   +3 more sources

Tychonoff's Theorem for Hyperspaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
If exp ⁡ (
openaire   +1 more source

Partial actions of groups on hyperspaces

open access: yesApplied General Topology, 2022
Let X be a compact Hausdorff space. In this work we translate partial actions of X to partial actions on some hyperspaces determined by X, this gives an endofunctor 2- in the category of partial actions on compact Hausdorff spaces which generates a monad
Luis Martínez   +2 more
doaj   +1 more source

Towards practical oscillation detection in wind farms: Comparative study of AI models, novel metrics, and edge implementations

open access: yesEnergy Conversion and Economics, EarlyView.
Abstract Fast oscillations observed in wind farms and other renewable energy systems interfaced with power grids must be addressed promptly to prevent devastating shutdown and damage. Existing approaches mainly target high‐magnitude oscillations using data‐intensive convolutional neural networks (CNNs), leading to delayed detection and overlooking mild
Shyam Yathirajam   +8 more
wiley   +1 more source

‘The White Hordes From the West’: Race and Refuge in Australian Media Commentary About White Rhodesians During Zimbabwe's Decolonisation

open access: yesAustralian Journal of Politics &History, EarlyView.
ABSTRACT This article explores Australian media commentary on white Rhodesians migrating to Australia, focusing on the period of Malcolm Fraser's prime ministership (1975–1983). The main argument is that the Australian media debates about whether to classify white Rhodesians as ‘migrants’ or ‘refugees’ were not merely semantic but reflected a deeper ...
George Bishi, Ana Stevenson
wiley   +1 more source

Retractions in hyperspaces

open access: yesTopology and its Applications, 2004
Given a metric continuum \(X\), let \(2^X\), \(C(X)\) and \(C_2(X)\) denote the hyperspaces of all nonempty closed subsets, subcontinua, and closed subsets with at most two components of \(X\), respectively (with the Hausdorff metric). For a fixed point \(p \in X\) the symbols \(2^X_p\), \(C(p,X)\) and \(C_2(p,X)\) denote the subspaces consisting of ...
openaire   +2 more sources

On the Novak number of a hyperspace [PDF]

open access: yes, 1992
summary:An estimate for the Novak number of a hyperspace with the Vietoris topology is given.
Costantini, Camillo, Bella, Angelo
core  

On the hyperspace suspension of a continuum

open access: yes, 2004
In 1979 Sam B. Nadler Jr, defined the hyperspace suspension of a continuum. He showed that this hyperspace is unicoherent and that if X is chainable, then the hyperspace suspension of X has the fixed point property.
de Jesús López, Marı́a   +5 more
core   +1 more source

Contractibility of the hyperspace of meager subcontinua, two examples

open access: yesApplied General Topology
Given a metric continuum X, the hyperspace of meager subcontinua of X, denoted by M(X), is the collection of all subcontinua of X with empty interior. Answering questions by Norberto Ordo˜nez, in this paper we construct two dendroids showing that there ...
Alejandro Illanes   +1 more
doaj   +1 more source

The Validity of ICD‐10 Codes in Recording the Incidence of Traumatic Dental Injuries

open access: yesDental Traumatology, EarlyView.
ABSTRACT Background/Aim Traumatic dental injuries (TDIs) significantly affect quality of life and healthcare costs. Large administrative datasets using ICD codes offer opportunities for epidemiological research; however, the accuracy of International Classification of Diseases, Tenth Revision (ICD‐10) codes for TDIs remains unclear. This study aimed to
Ehsan N. Azadani   +3 more
wiley   +1 more source

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