Title: CORRELATIONS AND MULTIFRACTALITY IN AN EARTHQUAKE MODEL ON ASSORTATIVE SCALE-FREE NETWORKS FROM MONO- AND MULTI-FRACTAL ANALYSES
Abstract: The scaling properties of the avalanches' interevent time series in a modified Olami–Feder–Christensen (OFC) earthquake model on assortative scale-free networks have been investigated. We analyze the interevent time of avalanches with size larger than or equal to S th by using rescaled range (R/S) analysis and detrended fluctuation analysis (DFA) methods. Our results demonstrate positive correlation and persistent feature of the interevent time series. The multifractal detrended fluctuation analysis (MF-DFA) has evidenced differences among the avalanches' interevents interval with different S th . We determine generalized Hurst exponent and singularity spectrum and find that the interevent time series have multifractal nature.
Publication Year: 2012
Publication Date: 2012-10-01
Language: en
Type: article
Indexed In: ['crossref']
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