Results 81 to 90 of about 2,542 (182)

Multifractal Structures and the Energy-Economic Efficiency of Chinese Cities: Using a Classification-Based Multifractal Method

open access: yesFractal and Fractional
Improper urban spatial structure can lead to problems such as traffic congestion, long commuting times, and diseconomies of scale. Evaluating the efficiency of urban spatial structure is an important means to enhance the sustainable development of cities.
Jiaxin Wang, Bin Meng, Feng Lu
doaj   +1 more source

The relative Renyi dimensions. Относительные размерности Реньи [PDF]

open access: yesПроблемы анализа, 2012
В работе вводятся понятия относительных размерностей Реньи для покрытий, упаковок и разбиений. а так же устанавливаются некоторые связи между ними.Recently, many authors are discussing the use of methods of fractal geometry [5] to compare the ...
Svetova N. Yu.
doaj  

ОТНОСИТЕЛЬНЫЕ РАЗМЕРНОСТИ РЕНЬИ

open access: yesПроблемы анализа, 2012
Recently, many authors are discussing the use of methods of fractal geometry [5] to compare the distributions of the various measures. However, in practical applications, comparison of distributions by comparing the calculated multifractal spectra can be
СВЕТОВА Н.Ю.
doaj  

Multifractal Measures and Singularity Analysis of Rainfall Time Series in the Semi-Arid Central Mexican Plateau

open access: yesAtmosphere
A multifractal formalism relates multiscale quantities to the multifractal spectrum. The multifractal framework provides significant analytical advantages by incorporating a wide range of statistical moment orders (q), thereby enabling a more ...
Alvaro Alberto López-Lambraño   +4 more
doaj   +1 more source

Dissecting multifractal detrended cross-correlation analysis

open access: yesPhysica A: Statistical Mechanics and its Applications
14 pages, 3 figures and 2 ...
Borko Stosic, Tatijana Stosic
openaire   +2 more sources

Almost additive multifractal analysis

open access: yesJournal de Mathématiques Pures et Appliquées, 2009
For the class of almost additive sequences, the authors establish a conditional variational principle for the dimension spectra in the context of the nonadditive thermodynamic formalism. This generalizes the classical thermodynamic formalism, by replacing the topological pressure of a single function by the topological pressure of a sequence of ...
Barreira, Luis, Doutor, Paulo
openaire   +2 more sources

A preliminary studyof the site-dependence of the multifractalfeatures of geoelectric measurements

open access: yesAnnals of Geophysics, 2004
Multifractal analysis was performed to characterize the fluctuations in dynamics of the hourly time variability of self-potential signals measured from January 2001 to September 2002 by three stations installed in the Basilicata region ...
M. Macchiato   +3 more
doaj   +1 more source

Evidence of multifractality from emerging European stock markets.

open access: yesPLoS ONE, 2012
We test for the presence of multifractality in the daily returns of the three most important stock market indices from Central and Eastern Europe, Czech PX, Hungarian BUX and Polish WIG using the Empirical Mode Decomposition based Multifractal Detrended ...
Petre Caraiani
doaj   +1 more source

Bifractality and Crossover Behavior Observed in Solar Wind Intermittency by Parker Solar Probe: Rank-ordered Analysis and Partition Function Approach

open access: yesThe Astrophysical Journal
Multifractal analysis of the intermittent solar wind magnetic energy fluctuations reveals new features of the young slow solar wind measured by Parker Solar Probe.
Eliza Teodorescu   +2 more
doaj   +1 more source

Detection of Pipeline Leaks Using Fractal Analysis of Acoustic Signals

open access: yesFractal and Fractional
In this paper, the possibility of using monofractal and multifractal analysis of acoustic signals of pipelines to detect leaks is considered. An experimental stand has been created to study the fractal characteristics of acoustic signals of pipelines ...
Ayrat Zagretdinov   +5 more
doaj   +1 more source

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