Results 31 to 40 of about 11,601 (226)

Multifractal Analysis on the Sphere [PDF]

open access: yes, 2008
A new generation of instruments in astrophysics or vision now provide spherical data. These spherical data may present a self- similarity property while no spherical analysis tool is yet available to characterize this property. In this paper we present a first numerical study of the extension of multifractal analysis onto the sphere using spherical ...
Koenig, Emilie, Chainais, Pierre
openaire   +2 more sources

Dual multifractal spectra [PDF]

open access: yesPhysical Review E, 2004
The multifractal formalism characterizes the scaling properties of a physical density rho as a function of the distance L. To each singularity alpha of the field is attributed a fractal dimension for its support f(alpha). An alternative representation has been proposed by Jensen considering the distribution of distances associated to a fixed mass ...
Roux, S, Jensen, M.H.
openaire   +3 more sources

A Comparison of Wavelet Packet, Wavelet Leaders Multifractal, and p-Leader Multifractal Method in Chatter Detection

open access: yes, 2023
An efficient stability analysis contributes to the improvement of machining stability and chatter suppression. First, this paper presents three chatter detection approaches that were developed on the application of wavelet transforms.
Wang, Y   +4 more
core   +1 more source

Tool Embodiment Is Reflected in Movement Multifractal Nonlinearity

open access: yesFractal and Fractional, 2022
Recent advances in neuroscience have linked dynamical systems theory to cognition. The main contention is that extended cognition relies on a unitary brain-body-tool system showing the expected signatures of interaction-dominance reflected in a ...
Yvan Pratviel   +3 more
doaj   +1 more source

Joint multifractal analysis based on the partition function approach: analytical analysis, numerical simulation and empirical application

open access: yesNew Journal of Physics, 2015
Many complex systems generate multifractal time series which are long-range cross-correlated. Numerous methods have been proposed to characterize the multifractal nature of these long-range cross correlations.
Wen-Jie Xie   +4 more
doaj   +1 more source

Multifractal Variation Measures and Multifractal Density Theorems

open access: yesReal Analysis Exchange, 2003
For \(E\subseteq {\mathbf R}^d, q, t\in {\mathbf R} \) and \(\delta >0\), \(\mathcal H_\mu^{q,t}\) and \(\mathcal P_\mu^{q,t}\) denote, respectively, the multifractal Hausdorff measure and multifractal packing measure introduced by Olsen and Peyrière.
Cole, J., Olsen, L.
openaire   +3 more sources

Multifractal Interpolation of Universal Multifractals

open access: yes, 1997
LaTeX, 9 pages, no ...
Bar'yahtar, V. G.   +3 more
openaire   +2 more sources

Generalized energy inequalities and higher multifractal moments

open access: yes, 2014
We present a class of generalized energy inequalities and indicate their use in investigating higher multifractal moments, in particular Lq-dimensions of images of measures under Brownian processes, Lq-dimensions of almost self-affine measures, and moments
Falconer, Kenneth John, Kenneth Falconer
core   +1 more source

Nonlinear Analysis of the U.S. Stock Market: From the Perspective of Multifractal Properties and Cross-Correlations with Comparisons

open access: yesFractal and Fractional
This study investigates the multifractal properties of daily returns of the Standard and Poor’s 500 Index (SPX), the Dow Jones Industrial Average (DJI), and the Nasdaq Composite Index (IXIC), the three main indices representing the U.S.
Chenyu Han, Yingying Xu
doaj   +1 more source

Generalized binomial multiplicative cascade processes and asymmetrical multifractal distributions [PDF]

open access: yesNonlinear Processes in Geophysics, 2014
The concepts and models of multifractals have been employed in various fields in the geosciences to characterize singular fields caused by nonlinear geoprocesses.
Q. Cheng
doaj   +1 more source

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