Acta mathematica scientia,Series B ›› 2018, Vol. 38 ›› Issue (2): 681-694.doi: 10.1016/S0252-9602(18)30774-4

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SOLUTIONS TO BSDES DRIVEN BY BOTH FRACTIONAL BROWNIAN MOTIONS AND THE UNDERLYING STANDARD BROWNIAN MOTIONS

Yuecai HAN1, Yifang SUN2   

  1. 1. Department of Mathematical Finance, School of Mathematics, Jilin University, Changchun 130012, China;
    2. Department of Probability and Mathematical Statistics, School of Mathematics, Jilin University, Changchun 130012, China
  • Received:2016-11-28 Revised:2017-05-18 Online:2018-04-25 Published:2018-04-25
  • Contact: Yifang SUN E-mail:syf15@mails.jlu.edu.cn
  • Supported by:

    This work was supported by NSFC grant (11371169), and China Automobile Industry Innovation and Development Joint Fund (U1564213).

Abstract:

The local existence and uniqueness of the solutions to backward stochastic differential equations(BSDEs, in short) driven by both fractional Brownian motions with Hurst parameter H∈(1/2,1) and the underlying standard Brownian motions are studied. The generalization of the Itô formula involving the fractional and standard Brownian motions is provided. By theory of Malliavin calculus and contraction mapping principle, the local existence and uniqueness of the solutions to BSDEs driven by both fractional Brownian motions and the underlying standard Brownian motions are obtained.

Key words: Backward stochastic differential equations, malliavin calculus, fractional Brownian motions, Itô, formula

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