Abstract
We consider the α-stable Ornstein–Uhlenbeck process in \({\mathbb{R}}^d\) with the generator \(L = \Delta^{\alpha/2} - \lambda x \cdot\nabla_x\) . We show that if 2 > α ≥ 1 or α < 1 = d the Harnack inequality holds. For α < 1 < d we construct a counterexample that shows that the Harnack inequality does not hold.
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Jakubowski, T. On Harnack inequality for α-stable Ornstein–Uhlenbeck processes. Math. Z. 258, 609–628 (2008). https://doi.org/10.1007/s00209-007-0188-2
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DOI: https://doi.org/10.1007/s00209-007-0188-2