English

Iterated logarithm law for anticipating stochastic differential equations

Probability 2007-07-19 v1

Abstract

We prove a functional law of iterated logarithm for the following kind of anticipating stochastic differential equations ξtu=X0u+1logloguj=1k0tAju(ξsu)dWsj+0tA0u(ξsu)ds,\xi^u_t=X_0^u+\frac{1}{\sqrt{\log\log u}}\sum_{j=1}^k \int_0^{t} A_j^u(\xi^u_s)\circ dW_{s}^j+ \int_0^{t} A_0^u(\xi^u_s)ds, where u>eu>e, W={(Wt1,...,Wtk),0t1}W=\{(W_t^1,...,W_t^k), 0\le t\le 1\} is a standard kk-dimensional Wiener process, A0u,A1u,...,Aku:RdRdA_0^u,A_1^u,..., A_k^u:\mathbb{R}^d\longrightarrow \mathbb{R}^d are functions of class C2\mathcal{C}^2 with bounded partial derivatives up to order 2, X0uX_0^u is a random vector not necessarily adapted and the first integral is a generalized Stratonovich integral .

Keywords

Cite

@article{arxiv.0707.2650,
  title  = {Iterated logarithm law for anticipating stochastic differential equations},
  author = {D. Marquez-Carreras and C. Rovira},
  journal= {arXiv preprint arXiv:0707.2650},
  year   = {2007}
}
R2 v1 2026-06-21T08:59:19.537Z