Sobolev regularity of occupation measures and paths, variability and compositions

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2022-06-15

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en

Pages

1–29

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Electronic Journal of Probability, Volume 27, issue 73

Abstract

We prove a result on the fractional Sobolev regularity of composition of paths of low fractional Sobolev regularity with functions of bounded variation. The result relies on the notion of variability, proposed by us in the previous article [43]. Here we work under relaxed hypotheses, formulated in terms of Sobolev norms, and we can allow discontinuous paths, which is new. The result applies to typical realizations of certain Gaussian or Lévy processes, and we use it to show the existence of Stieltjes type integrals involving compositions.

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| openaire: EC/H2020/818437/EU//QSHvar

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111 Mathematics

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Citation

Hinz, M, Tölle, J M & Viitasaari, L 2022, ' Sobolev regularity of occupation measures and paths, variability and compositions ', Electronic Journal of Probability, vol. 27, no. 73, 73, pp. 1–29 . https://doi.org/10.1214/22-EJP797