Hedging strategy of a contingent claim in incomplete market

The price of underlying assets follows a geometric Brownian motion in the Black-Scholes model. If the finance market is complete this paper gives an accurate hedging strategy by another method. Then we introduce a dynamic measure of risk to the incomplete market, under which we have acquired the optimal replication of a contingent claim in the finance market which is induced by a risk neutral probability measare. With an application of a generalized Clark formula the paper provides the optimal hedging strategy for a contingent claim.