Results 21 to 30 of about 7,126 (197)

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

Multifractality and its role in anomalous transport in the disordered XXZ spin-chain [PDF]

open access: yes, 2020
The disordered XXZ model is a prototype model of the many-body localization transition (MBL). Despite numerous studies of this model, the available numerical evidence of multifractality of its eigenstates is not very conclusive due severe finite size ...
Khaymovich, Ivan M.   +2 more
core   +3 more sources

Multifractality without fine-tuning in a Floquet quasiperiodic chain

open access: yesSciPost Physics, 2018
Periodically driven, or Floquet, disordered quantum systems have generated many unexpected discoveries of late, such as the anomalous Floquet Anderson insulator and the discrete time crystal.
Sthitadhi Roy, Ivan M. Khaymovich, Arnab Das, Roderich Moessner
doaj   +1 more source

Multifractal detrended fluctuation analysis of nonstationary time series [PDF]

open access: yes, 2002
We develop a method for the multifractal characterization of nonstationary time series, which is based on a generalization of the detrended fluctuation analysis (DFA).
Alados   +50 more
core   +2 more sources

Multifractal spectra and multifractal zeta-functions [PDF]

open access: yesAequationes mathematicae, 2016
49 ...
Mijovic, Vuksan, Olsen, Lars Ole Ronnow
openaire   +4 more sources

Multifractal Analysis of Charged Particle Multiplicity Distribution in the Framework of Renyi Entropy

open access: yesAdvances in High Energy Physics, 2018
A study of multifractality and multifractal specific heat has been carried out for the produced shower particles in nuclear emulsion detector for 16O-AgBr, 28Si-AgBr, and 32S-AgBr interactions at 4.5AGeV/c in the framework of Renyi entropy.
Swarnapratim Bhattacharyya   +3 more
doaj   +1 more source

Modeling Dynamic Multifractal Efficiency of US Electricity Market

open access: yesEnergies, 2021
The dramatic deregulatory reforms in US electricity markets increased competition, resulting in more complex prices compared to other commodities. This paper aims to investigate and compare the overall and time-varying multifractality and efficiency of ...
Haider Ali, Faheem Aslam, Paulo Ferreira
doaj   +1 more source

Multifractality and Freezing Phenomena in Random Energy Landscapes: an Introduction [PDF]

open access: yes, 2010
The Boltzmann-Gibbs probability distributions generated by logarithmically correlated random potentials provide a simple yet nontrivial example of disorder-induced multifractal measures. We introduce and discuss two analytically tractable models for such
Bacry   +41 more
core   +1 more source

Decomposing Multifractal Crossovers [PDF]

open access: yesFrontiers in Physiology, 2017
Physiological processes-such as, the brain's resting-state electrical activity or hemodynamic fluctuations-exhibit scale-free temporal structuring. However, impacts common in biological systems such as, noise, multiple signal generators, or filtering by transport function, result in multimodal scaling that cannot be reliably assessed by standard ...
Zoltan Nagy   +5 more
openaire   +4 more sources

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