Before revision:  This delta hedge is described in a key formula in terms of a derivative functional of the solution process and the correlation structure of the internal uncertainty captured by the forward process and the external uncertainty responsible for the market incompleteness  .
After revision:  The representation formula of the main result describes this delta hedge in terms of the derivative of the BSDE's solution process on the one hand, and the correlation structure of the internal uncertainty captured by the forward process and the external uncertainty responsible for the market incompleteness .