Taylor expansion for the solution of a stochastic differential equation driven by fractional Brownian motions

نویسندگان

  • Fabrice Baudoin
  • Xuejing Zhang
چکیده

We study the Taylor expansion for the solution of a differential equation driven by a multi-dimensional Hölder path with exponent β > 1/2. We derive a convergence criterion that enables us to write the solution as an infinite sum of iterated integrals on a nonempty interval. We apply our deterministic results to stochastic differential equations driven by fractional Brownian motions with Hurst parameter H > 1/2. We also study the convergence in L of the stochastic Taylor expansion by using L estimates of iterated integrals and Borel-Cantelli type arguments.

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تاریخ انتشار 2012