Results 1 to 10 of about 47 (45)

Continua whose hyperspace of subcontinua is infinite dimensional and a cone

open access: yesExtracta Mathematicae, 2023
We determine several classes of continua whose hyperspaces of subcontinua are infinite dimensional and homeomorphic to cones over (usually) other continuum. In particular, we obtain many Peano continua with such a property.
S. Macías, S.B. Nadler
doaj   +3 more sources

On setwise betweenness

open access: yesApplied General Topology, 2023
In this article, we investigate the notion of setwise betweenness, a concept introduced by P. Bankston as a generalisation of pointwise betweenness. In the context of continua, we say that a subset C of a continuum X is between distinct points a and b of
Qays R. Shakir
doaj   +1 more source

The lifting property for classes of mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
The lifting property of continua for classes of mappings is defined. It is shown that the property is preserved under the inverse limit operation. The results, when applied to the class of confluent mappings, exhibit conditions under which the induced ...
Janusz J. Charatonik
doaj   +1 more source

From Berzelius to Hyperspace: Previously Unrecognized Network of Reactivity in Textbook Brominations

open access: yesAngewandte Chemie, EarlyView.
Robotic scans across multidimensional condition spaces of classic bromination reactions uncover regions of previously unrecognized reactivity, yielding new major products and novel substitution patterns. Correlation and anticorrelation analyses of product distributions across these hyperspaces enable reconstruction of the underlying mechanistic ...
Yankai Jia   +9 more
wiley   +2 more sources

On the hyperspaces of meager and regular continua

open access: yesApplied General Topology
Given a metric continuum X, we consider the collection of all regular subcontinua of X and the collection of all meager subcontinua of X, these hyperspaces are denoted by D(X) and M(X), respectively.
Javier Camargo   +2 more
doaj   +1 more source

More on T-closed sets

open access: yesApplied General Topology
We consider properties of the diagonal of a continuum that are used later in the paper. We continue the study of T-closed subsets of a continuum X. We prove that for a continuum X, the statements: ΔX  is a nonblock subcontinuum of X2, ΔX is a shore ...
Javier Camargo, Sergio Macías
doaj   +1 more source

VOID URBANISM: Unbuilt New Cities and State Formation in the Democratic Republic of Congo

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Based on an analysis of the planning process behind Kitoko City in the Democratic Republic of Congo—a new city project officially launched in 2019 but never implemented—this article examines the political, social, and spatial effects generated by urban initiatives that remain at the stage of intention. It investigates how such unbuilt projects
Patrick Belinga Ondoua
wiley   +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

Bolide Light Curve Systematics from 75 Recovered Meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens   +3 more
wiley   +1 more source

A Sensitivity Analysis Workflow for Power Series Compounded Lifetime Models: Evidence From Weibull Power Series Fits

open access: yesQuality and Reliability Engineering International, Volume 42, Issue 6, Page 3606-3619, October 2026.
ABSTRACT We propose a practical procedure to quantify the time varying influence of parameters on hazard functions for power series compounded lifetime models. The procedure combines likelihood based fitting with a two stage sensitivity analysis and applies to a range of baselines and compounding laws.
Yuancheng Si, Saralees Nadarajah
wiley   +1 more source

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