English

BSDEs generated by fractional space-time noise and related SPDEs

Probability 2022-08-02 v1

Abstract

This paper is concerned with the backward stochastic differential equations whose generator is a weighted fractional Brownian field: Yt=ξ+tTYsW(ds,Bs)tTZsdBsY_t=\xi+\int_t^T Y_s W (ds,B_s) -\int_t^T Z_sdB_s, 0tT0\le t\le T, where WW is a (d+1)(d+1)-parameter weighted fractional Brownian field of Hurst parameter H=(H0,H1,,Hd)H=(H_0, H_1, \cdots, H_d), which provide probabilistic interpretations (Feynman-Kac formulas) for certain linear stochastic partial differential equations with colored space-time noise. Conditions on the Hurst parameter HH and on the decay rate of the weight are given to ensure the existence and uniqueness of the solution pair. Moreover, the explicit expression for both components YY and ZZ of the solution pair are given.

Keywords

Cite

@article{arxiv.2208.00289,
  title  = {BSDEs generated by fractional space-time noise and related SPDEs},
  author = {Yaozhong Hu and Juan Li and Chao Mi},
  journal= {arXiv preprint arXiv:2208.00289},
  year   = {2022}
}