稳定过程驱动的奇异随机微分方程的路径唯一性
Pathwise uniqueness for singular SDEs driven by stable processes
摘要:
本文证明了由非退化对称$α$ -稳定Lévy过程驱动的随机微分方程的路径唯一性,其中值在$\R^d$中具有有界和$β$ -Hölder连续漂移项.我们假设$β> 1 - \fracα{2} $和$α\in [ 1, 2)$。证明需要Kolmogorov型积分-微分算子的解析正则性结果。我们还研究了解关于初始条件的可微性和同胚性质。
英文摘要:
We prove pathwise uniqueness for stochastic differential equations driven by non-degenerate symmetric $α$-stable Lévy processes with values in $\R^d$ having a bounded and $β$-Hölder continuous drift term. We assume $β> 1 - \fracα{2} $ and $α\in [ 1, 2)$. The proof requires analytic regularity results for associated integro-differential operators of Kolmogorov type. We also study differentiability of solutions with respect to initial conditions and the homeomorphism property.
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