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Davie's type uniqueness for a class of SDEs with jumps

Articolo
Data di Pubblicazione:
2018
Abstract:
A result of A.M. Davie [Int. Math. Res. Not. 2007] states that a multidimensional stochastic equation $dX_t = b(t, X_t)\,dt + dW_t$, $X_0=x$, driven by a Wiener process $W= (W_t)$ with a coefficient $b$ which is only bounded and measurable has a unique solution for almost all choices of the driving Wiener path.
We consider a similar problem when $W$ is replaced by a L\'evy process $L= (L_t)$ and $b$
is $\beta$-H\"older continuous in the space variable, $ \beta \in (0,1)$. We assume that $L_1$
has a finite moment of order $\theta$, for some $\theta>0$. Using also a new c\`adl\`ag regularity result for strong solutions, we prove that strong existence and uniqueness for the SDE together with $L^p$-Lipschitz continuity of the strong solution with respect to $x $ imply a Davie's type uniqueness result for almost all choices of the L\'evy path. We apply this result to a class of SDEs driven by non-degenerate $\alpha$-stable L\'evy processes, $\alpha \in (0,2)$.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
stochastic differential equations - Levy processes - path-by-path uniqueness - Holder continuous drift.
Elenco autori:
Priola, Enrico
Autori di Ateneo:
PRIOLA ENRICO
Link alla scheda completa:
https://iris.unipv.it/handle/11571/1251209
Pubblicato in:
ANNALES DE L'INSTITUT HENRI POINCARE-PROBABILITES ET STATISTIQUES
Journal
  • Dati Generali

Dati Generali

URL

http://arxiv.org/abs/1509.07448
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