In this paper we prove that the derivative process of a rough differential equation driven by a Brownian rough path has finite L r-moment for any r ≥ 1. This kind of problem is easy in the usual SDE theory, thanks to Burkholder-Davis-Gundy's inequality. In the context of rough path theory, however, it does not seem so obvious.
All Science Journal Classification (ASJC) codes
- Applied Mathematics