Lin Ji, Shao et Wu, Zhen, The Maximum Principle for One Kind of Stochastic Optimization Problem and Application in Dynamic Measure of Risk, Acta mathematica Sinica. English series (Print) , 23(12), 2007, pp. 2189-2204
The authors get a maximum principle for one kind of stochastic optimization problem motivated by dynamic measure of risk. The dynamic measure of risk to an investor in a financial market can be studied in our framework where the wealth equation may have nonlinear coefficients.