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Deep splitting method for parabolic PDEs

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arxiv 1907.03452 v2 pith:6D3VLHMV submitted 2019-07-08 math.NA cs.LGcs.NAmath.PRstat.ML

classification math.NAcs.LGcs.NAmath.PRstat.ML
keywords methodpdesdeeplearningparabolicsplittingapproachapproximation
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In this paper we introduce a numerical method for nonlinear parabolic PDEs that combines operator splitting with deep learning. It divides the PDE approximation problem into a sequence of separate learning problems. Since the computational graph for each of the subproblems is comparatively small, the approach can handle extremely high-dimensional PDEs. We test the method on different examples from physics, stochastic control and mathematical finance. In all cases, it yields very good results in up to 10,000 dimensions with short run times.

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Cited by 3 Pith papers

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    A randomized Taylor-mode jet pushforward that estimates arbitrary differential operator contractions without forming the full derivative tensor.

  2. Deep neural network approximations for Monte Carlo algorithms

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    A general theorem shows that neural networks inherit the absence of the curse of dimensionality from any discrete Monte Carlo scheme they can emulate, with applications to Kolmogorov PDEs.

  3. Space-time error estimates for deep neural network approximations for differential equations

    math.NA 2019-08 accept novelty 6.0 of 10

    The paper proves the first space-time error estimates for deep ReLU network approximations of Euler approximations of perturbed differential equations.

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