Abstract

Abstract We propose in this paper to establish a well-defined relationship between α D F A (the long range auto-correlation exponent) and λ D C C A (the long range cross-correlation exponent), respectively described by the DFA and DCCA methods. This relationship will be accomplished theoretically by differentiating the DCCA cross-correlation coefficient, ρ D C C A ( n ) . Also, for some specific times series, we apply this theory in order to establish its validity.

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