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BSDEs driven by G-Brownian motion under degenerate case and its application to the regularity of fully nonlinear PDEs

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arxiv 2205.09164 v1 pith:2HBHVBEJ submitted 2022-05-18 math.PR

classification math.PR
keywords casedegeneratedrivenfullyg-browniang-bsdemotionnonlinear
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In this paper, we obtain the existence and uniqueness theorem for backward stochastic differential equation driven by G-Brownian motion (G-BSDE) under degenerate case. Moreover, we propose a new probabilistic method based on the representation theorem of G-expectation and weak convergence to obtain the regularity of fully nonlinear PDE associated to G-BSDE.

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  1. Regularity of Solutions of Mean-Field $G$-SDEs

    math.PR 2025-08 conditional novelty 6.0 of 10

    Under smoothness conditions on the coefficients, the solution map of a mean-field G-SDE is Fréchet differentiable up to second order, with derivatives characterized as solutions of new G-SDEs.

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