Results 71 to 80 of about 3,034 (206)

Generalized surface multifractality in 2D disordered systems [PDF]

, 2023
Recently, a concept of generalized multifractality, which characterizes fluctuations and correlations of critical eigenstates, was introduced and explored for all ten symmetry classes of disordered systems. Here, by using the non-linear sigma-model field
Babkin, Serafim S., Burmistrov, Igor S., Mirlin, Alexander D., Babkin, Serafim ; https://orcid.org/, Karcher, Jonas F.   +4 more
core   +1 more source

Extreme Rainfall Estimation Methods: A Review

Meteorological Applications, Volume 33, Issue 5, September/October 2026.
The figure illustrates the topics we cover and their inter‐relationships. Extreme value models assign probabilities to rainfall depths, often using regionalisation. They may also allow variation with season, duration, climate epoch or the spatial extent of rainfall. The resulting storm depths can be assigned spatial and/or temporal profiles.
Duncan Faulkner, Jonathan Tawn, Christine McKenna   +2 more
wiley   +1 more source

Bootstrap for Multifractal Analysis [PDF]

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
Multifractal analysis, which mainly consists in estimating scaling exponents, has become a popular tool for empirical data analysis. Although widely used in different applications, the statistical performance and the reliability of the estimation procedures are still poorly known.
Herwig Wendt, Patrice Abry
openaire   +2 more sources

Wavelet‐Based Hurst Exponent Estimation

WIREs Computational Statistics, Volume 18, Issue 3, September 2026.
The review explores how wavelet‐based methods for estimating the Hurst parameters have developed from their theoretical roots to real‐world applications in fields like biology, engineering, and telecommunications. The review aims to highlight key techniques, compare their strengths and limitations, and point out challenges that still need to be ...
Dixon Vimalajeewa, Fabrizio Ruggeri, Brani Vidakovic   +2 more
wiley   +1 more source

Understanding emerging properties through multi-scaling nature in the financial market

Frontiers in Physics
Multifractality in financial time series has been extensively reported as a potential signature of complex market dynamics, with implications for risk management, market efficiency, and extreme event prediction.
Changhee Cho, DongBeen Kim, Jae Sung Kim, Seung Hoon Noh, Jae Woo Lee, Jae Woo Lee   +5 more
doaj   +1 more source

Least‐Resistance Path as a Proxy for Efficient Simulation of Solute Transport in Heterogeneous Porous Media

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Accurately predicting solute transport remains a central challenge in hydrogeology due to limited data and multiscale subsurface heterogeneity. Fractional Brownian motion (fBm) is widely used to model the logarithm of hydraulic conductivity fields.
Binhao Li, Felipe P. J. de Barros, Muhammad Sahimi   +2 more
wiley   +1 more source

Multifractality and Network Analysis of Phase Transition. [PDF]

PLoS ONE, 2017
Many models and real complex systems possess critical thresholds at which the systems shift dramatically from one sate to another. The discovery of early-warnings in the vicinity of critical points are of great importance to estimate how far the systems ...
Longfeng Zhao, Wei Li, Chunbin Yang, Jihui Han, Zhu Su, Yijiang Zou   +5 more
doaj   +1 more source

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

Agribusiness, Volume 42, Issue 3, Page 869-885, Summer 2026.
ABSTRACT The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

Robustness of quantum multifractality

, 2014
Several models where quantum wave functions display multifractal properties have been recently identified. In the quantum chaos field, they correspond to pseudointegrable systems, with properties intermediate between integrability and chaos. In condensed
Garcia-Mata, Ignacio, Georgeot, Bertrand, Giraud, Olivier, Lemarié, Gabriel, Martin, John, Dubertrand, Rémy   +5 more
core   +1 more source

Long-term correlations and multifractality of toll-free calls in China

, 2021
In the recent decades, calling activities have been studied from different perspectives in social physics field. In diverse studies, call frequencies and call durations have been widely used to quantify calling activity.
Gui, Jun, Liu, Zhi, Fu, Dianzheng, Zheng, Zeyu, Fu, Yang   +4 more
core   +2 more sources