Results 21 to 30 of about 2,931,499 (197)

Multiscale Analysis of 1-rectifiable Measures II: Characterizations

open access: yesAnalysis and Geometry in Metric Spaces, 2017
A measure is 1-rectifiable if there is a countable union of finite length curves whose complement has zero measure. We characterize 1-rectifiable Radon measures μ in n-dimensional Euclidean space for all n ≥ 2 in terms of positivity of the lower density ...
Badger Matthew, Schul Raanan
doaj   +1 more source

Tripled Fixed Points and Existence Study to a Tripled Impulsive Fractional Differential System via Measures of Noncompactness

open access: yesMathematics, 2021
In this paper, a tripled fractional differential system is introduced as three associated impulsive equations. The existence investigation of the solution is based on contraction principle and measures of noncompactness in terms of tripled fixed point ...
Sina Etemad   +3 more
doaj   +1 more source

Some typical properties of dimensions of sets and measures

open access: yesAbstract and Applied Analysis, 2005
This paper contains a review of recent results concerning typical properties of dimensions of sets and dimensions of measures. In particular, we are interested in the Hausdorff dimension, box dimension, and packing dimension of sets and in the Hausdorff ...
Józef Myjak
doaj   +1 more source

Dimension and measure for generic continuous images [PDF]

open access: yes, 2013
This work is supported by EPSRC Doctoral Training GrantsWe consider the Banach space consisting of continuous functions from an arbitrary uncountable compact metric space, X, into R-n.
James T. Hyde   +9 more
core   +1 more source

On optimal polyline simplification using the Hausdorff and Fréchet distance

open access: yesJournal of Computational Geometry, 2020
We revisit the classical polygonal line simplification problem and study it using the Hausdorff distance and Fréchet distance. Interestingly, no previous authors studied line simplification under these measures in its pure form, namely: for a given ε ...
Marc van Kreveld   +2 more
doaj   +1 more source

Polyline simplification has cubic complexity

open access: yesJournal of Computational Geometry, 2021
$\DeclareMathOperator{\poly}{poly}$In the classic polyline simplification problem, given a polygonal curve~$P$ consisting of $n$ vertices and an error threshold $\delta \geq 0$, we want to replace $P$ by a subsequence~$Q$ of minimal size such that the ...
Karl Bringmann, Bhaskar Ray Chaudhury
doaj   +1 more source

Exact dimensionality and projections of random self-similar measures and sets [PDF]

open access: yes, 2014
We study the geometric properties of random multiplicative cascade measures defined on self-similar sets. We show that such measures and their projections and sections are almost surely exact dimensional, generalizing a result of Feng and Hu's for self ...
Jin, Xiong   +4 more
core   +1 more source

Research on Evaluation of Sustainable Development of New Urbanization from the Perspective of Urban Agglomeration under the Pythagorean Fuzzy Sets

open access: yesDiscrete Dynamics in Nature and Society, 2021
In this study, considering the traditional geometric operation laws and Pythagorean fuzzy information, we propose a variety of new distance measures of Pythagorean fuzzy sets such as generalized Pythagorean fuzzy geometric distance (GPFGD) measures and ...
Lingyan Meng, Xiaoyan Wei
doaj   +1 more source

Hausdorff h-measures and p-modules

open access: yesJournal of Numerical Analysis and Approximation Theory, 1978
Not available.
Petru Caraman
doaj   +2 more sources

Carleson Measure and Tent Spaces on the Siegel Upper Half Space

open access: yesAbstract and Applied Analysis, 2012
The Hausdorff capacity on the Heisenberg group is introduced. The Choquet integrals with respect to the Hausdorff capacity on the Heisenberg group are defined. Then the fractional Carleson measures on the Siegel upper half space are discussed.
Kai Zhao
doaj   +1 more source

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