{ "id": "2305.19239", "version": "v1", "published": "2023-05-30T17:28:50.000Z", "updated": "2023-05-30T17:28:50.000Z", "title": "Characterization of p-exponents by continuous wavelet transforms, applications to the multifractal analysis of sum of random pulses", "authors": [ "Guillaume Saƫs" ], "categories": [ "math.CA", "cs.NA", "math.FA", "math.NA" ], "abstract": "The theory of orthonormal wavelet bases is a useful tool in multifractal analysis, as it provides a characterization of the different exponents of pointwise regularities (H{\\\"o}lder, p-exponent, lacunarity, oscillation, etc.). However, for some homogeneous self-similar processes, such as sums of random pulses (sums of regular, well-localized functions whose expansions and translations are random), it is easier to estimate the spectrum using continuous wavelet transforms. In this article, we present a new characterization of p-exponents by continuous wavelet transforms and we provide an application to the regularity analysis of sums of random pulses.", "revisions": [ { "version": "v1", "updated": "2023-05-30T17:28:50.000Z" } ], "analyses": { "keywords": [ "continuous wavelet transforms", "random pulses", "multifractal analysis", "characterization", "p-exponent" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }