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Published online by Cambridge University Press: 23 November 2015
In this paper, we are concerned with probabilistic high order numerical schemesfor Cauchy problems of fully nonlinear parabolic PDEs. For such parabolic PDEs,it is shown by Cheridito, Soner, Touzi and Victoir [4] that the associated exactsolutions admit probabilistic interpretations, i.e., the solution of a fullynonlinear parabolic PDE solves a corresponding second order forward backwardstochastic differential equation (2FBSDEs). Our numerical schemes rely onsolving those 2FBSDEs, by extending our previous results [W. Zhao, Y. Fu and T.Zhou, SIAM J. Sci. Comput., 36 (2014), pp. A1731-A1751.]. Moreover, in ournumerical schemes, one has the flexibility to choose the associated forward SDE,and a suitable choice can significantly reduce the computational complexity.Various numerical examples including the HJB equations are presented to show theeffectiveness and accuracy of the proposed numerical schemes.