Results 1 to 10 of about 163,567 (144)

Order-unit-metric spaces [PDF]

open access: yesPositivity, 2013
We study the concept of cone metric space in the context of ordered vector spaces by setting up a general and natural framework for it.
Çağlar, Mert, Ercan, Zafer
openaire   +4 more sources

On the H.-Q. Li inequality on step-two Carnot groups

open access: yesComptes Rendus. Mathématique, 2023
In this note we show that the gradient estimate of the heat semigroup, or more precisely the H.-Q. Li inequality, is preserved under tensorization, some suitable group epimorphism, and central sum. We also establish the Riemannian counterpart of the H.-Q.
Zhang, Ye
doaj   +1 more source

Fault-tolerance in metric dimension of boron nanotubes lattices

open access: yesFrontiers in Computational Neuroscience, 2023
The concept of resolving set and metric basis has been very successful because of multi-purpose applications both in computer and mathematical sciences.
Zafar Hussain, Muhammad Mobeen Munir
doaj   +1 more source

Asymptotically Mean Value Harmonic Functions in Doubling Metric Measure Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2022
We consider functions with an asymptotic mean value property, known to characterize harmonicity in Riemannian manifolds and in doubling metric measure spaces.
Adamowicz Tomasz   +2 more
doaj   +1 more source

Spheres and Tori as Elliptic Linear Weingarten Surfaces

open access: yesMathematics, 2022
The linear Weingarten condition with ellipticity for the mean curvature and the extrinsic Gaussian curvature on a surface in the three-sphere can define a Riemannian metric which is called the elliptic linear Weingarten metric.
Dong-Soo Kim, Young Ho Kim, Jinhua Qian
doaj   +1 more source

A novel approach to correcting attribution of Clostridioides difficile in a healthcare setting

open access: yesAntimicrobial Stewardship & Healthcare Epidemiology, 2023
Objective: To describe a novel attribution metric estimating the causal source location of healthcare-associated Clostridioides difficile and compare it with the current US National Healthcare Safety Network (NHSN) surveillance reporting standard ...
Hunter Doyle   +6 more
doaj   +1 more source

On sets with unit Hausdorff density in homogeneous groups

open access: yesForum of Mathematics, Sigma, 2023
It is a longstanding conjecture that given a subset E of a metric space, if E has unit $\mathscr {H}^{\alpha }\llcorner E$ -density almost everywhere, then E is an $\alpha $ -rectifiable set. We prove this conjecture under the assumption that
Antoine Julia, Andrea Merlo
doaj   +1 more source

Estimating Production Metric for Ship Assembly Based on Geometric and Production Information of Ship Block Model

open access: yesJournal of Marine Science and Engineering, 2021
To secure technological competitiveness in shipbuilding and offshore industries, the continuous application and development of various technologies is essential.
Won-Seok Choi   +4 more
doaj   +1 more source

On Non-Archimedean $\mathcal{L}$-Fuzzy Vector Metric Spaces

open access: yesJournal of New Theory, 2023
This paper contributes to the broader studies of fuzzy vector metric spaces and fuzzy metric spaces based on order structures beyond the unit interval.
Şehla Eminoğlu
doaj   +1 more source

The Quaternionic Hardy Space and the Geometry of the Unit Ball

open access: yesBruno Pini Mathematical Analysis Seminar, 2015
The quaternionic Hardy space of slice regular functions H2(B) is a reproducing kernel Hilbert space. In this note we see how this property can be exploited to construct a Riemannian metric on the quaternionic unit ball B and we study the geometry arising
Giulia Sarfatti
doaj   +1 more source

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