Results 21 to 30 of about 1,874 (227)

Almost convex metrics and Peano compactifications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1982
Let (X,d) denote a locally connected, connected separable metric space. We say the X is S-metrizable provided there is a topologically equivalent metric ρ on X such that (X,ρ) has Property S, i.e., for any ϵ>0, X is the union of finitely many connected ...
R. F. Dickman
doaj   +1 more source

The p-Royden and p-Harmonic Boundaries for Metric Measure Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2015
Let p be a real number greater than one and let X be a locally compact, noncompact metric measure space that satisfies certain conditions. The p-Royden and p-harmonic boundaries of X are constructed by using the p-Royden algebra of functions on X and a ...
Lucia Marcello, Puls Michael J.
doaj   +1 more source

Peano compactifications and property S metric spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
Let (X,d) denote a locally connected, connected separable metric space. We say the X is S-metrizable provided there is a topologically equivalent metric ρ on X such that (X,ρ) has Property S, i.e.
R. F. Dickman
doaj   +1 more source

Closed Mappings of Nowhere Locally Compact Metric Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1978
We present a method of construction which allows us to construct many examples of nowhere first countable spaces which are images of metric spaces under closed mappings, and which allows us to prove (with a certain natural restriction on the mapping) that there is a closed mapping from a metric space M
openaire   +1 more source

Order isomorphisms between bases of topologies

open access: yesExtracta Mathematicae, 2022
In this paper we will study the representations of isomorphisms between bases of topological spaces. It turns out that the perfect setting for this study is that of regular open subsets of complete metric spaces, but we have been able to show some ...
Javier Cabello Sánchez
doaj  

Dense embeddings of sigma-compact, nowhere locally compact metric spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
It is proved that a connected complete separable ANR Z Z that satisfies the discrete
openaire   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

open access: yesAdvanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht   +5 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Classification Of Locally 2-Connected Compact Metric Spaces

open access: yesCOMBINATORICA, 2004
The aim of this paper is to prove that, for compact metric spaces which do not contain infinite complete graphs, the (strong) property of being ``locally 2-dimensional'' is guaranteed just by a (weak) local connectivity condition. Specifically, we prove that a locally 2-connected, compact metric space \(M\) either contains an infinite complete graph or
openaire   +2 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

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