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- W4213405659 abstract "In this work, we investigate the fine regularity of L'evy processes using the 2-microlocal formalism. This framework allows us to refine the multifractal spectrum determined by Jaffard and, in addition, study the oscillating singularities of L'evy processes. The fractal structure of the latter is proved to be more complex than the classic multifractal spectrum and is determined in the case of alpha-stable processes. As a consequence of these fine results and the properties of the 2-microlocal frontier, we are also able to completely characterise the multifractal nature of the linear fractional stable motion (extension of fractional Brownian motion to {alpha}-stable measures) in the case of continuous and unbounded sample paths as well. The regularity of its multifractional extension is also presented, indirectly providing an example of a stochastic process with a non-homogeneous and random multifractal spectrum." @default.
- W4213405659 created "2022-02-24" @default.
- W4213405659 creator A5059038985 @default.
- W4213405659 date "2013-02-13" @default.
- W4213405659 modified "2023-10-17" @default.
- W4213405659 title "Fine regularity of L'evy processes and linear (multi)fractional stable motion" @default.
- W4213405659 hasPublicationYear "2013" @default.
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