On scaling in relation to singular spectra

Details On scaling in relation to singular spectra On scaling in relation to singular spectra

1996-10-30

arxiv.org/abs/chao-dyn/9610019v1

Nonlinear Sciences

Chaotic Dynamics

16 pages, LaTeX. To appear in Comm. Math. Phys

Scientific paper

10.1007/s002200050073

This paper relates uniform alpha-Hoelder continuity, or alpha-dimensionality, of spectral measures in an arbitrary interval to the Fourier transform of the measure. This is used to show that scaling exponents of exponential sums obtained from time series give local upper bounds on the degree of Hoelder continuity of the power spectrum of the series. The results have applications to generalized random walk, numerical detection of singular continuous spectra and to the energy growth in driven oscillators.

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