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Convergence error estimates of the Crank-Nicolson scheme for solving decoupled FBSDEs

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Abstract

In this work, we theoretically analyze the convergence error estimates of the Crank-Nicolson (C-N) scheme for solving decoupled FBSDEs. Based on the Taylor and Itô-Taylor expansions, the Malliavin calculus theory (e.g., the multiple Malliavin integration-by-parts formula), and our new truncation error cancelation techniques, we rigorously prove that the strong convergence rate of the C-N scheme is of second order for solving decoupled FBSDEs, which fills the gap between the second-order numerical and theoretical analysis of the C-N scheme.

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Acknowledgements

This work was supported by Shanghai University Young Teacher Training Program (Grant No. slg14032) and National Natural Science Foundations of China (Grant Nos. 11501366 and 11571206). The authors thank the referees very much for their valuable comments, which help them to improve our paper a lot.

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Correspondence to WeiDong Zhao.

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Li, Y., Yang, J. & Zhao, W. Convergence error estimates of the Crank-Nicolson scheme for solving decoupled FBSDEs. Sci. China Math. 60, 923–948 (2017). https://doi.org/10.1007/s11425-016-0178-8

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  • DOI: https://doi.org/10.1007/s11425-016-0178-8

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