中文

随机函数的 Malliavin 导数及其在 Lévy 驱动的 BSDE 中的应用

概率论 2016-09-26 v4

摘要

我们考虑可测函数 F:Ω×RdRF: \Omega \times \mathbb{R}^d \to \mathbb{R},其中对于任意 xxF(,x)F(\cdot, x) 属于(关于 Lévy 过程的)Malliavin Sobolev 空间 D1,2\mathbb{D}_{1,2},并给出关于 FFG1,,GdD1,2G_1,\ldots,G_d \in \mathbb{D}_{1,2} 的充分条件,使得 F(,G1,,Gd)D1,2F(\cdot, G_1,\ldots,G_d) \in \mathbb{D}_{1,2}。上述结果被应用于证明由 Lévy 噪声驱动的 BSDE(倒向随机微分方程)解的 Malliavin 可导性,其中生成元由循序可测函数 f(ω,t,y,z)f(\omega,t,y,z) 给出。

关键词

引用

@article{arxiv.1404.4477,
  title  = {Malliavin derivative of random functions and applications to L\'evy driven BSDEs},
  author = {Christel Geiss and Alexander Steinicke},
  journal= {arXiv preprint arXiv:1404.4477},
  year   = {2016}
}

备注

41 pages. In Theorem 3.12 (iii) and Assumption ($A_f$) e) the local Lipschitz condition on the Malliavin derivative of the generator has been weakened by introducing a map $\rho$ which determines the degree of a function's uniform continuity. One step in the proof of Theorem 3.12 has been corrected assuming slightly stronger integrability conditions in the assumptions of the Theorem