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Error estimates for physics informed neural networks approximating the Navier-Stokes equations

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arxiv 2203.09346 v2 pith:5L4L7C6A submitted 2022-03-17 math.NA cs.LGcs.NA

Error estimates for physics informed neural networks approximating the Navier-Stokes equations

Tim De Ryck , Ameya D. Jagtap , Siddhartha Mishra This is my paper
classification math.NA cs.LGcs.NA
keywords errornetworksneuralequationsinformednavier-stokesphysicsapproximating
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We prove rigorous bounds on the errors resulting from the approximation of the incompressible Navier-Stokes equations with (extended) physics informed neural networks. We show that the underlying PDE residual can be made arbitrarily small for tanh neural networks with two hidden layers. Moreover, the total error can be estimated in terms of the training error, network size and number of quadrature points. The theory is illustrated with numerical experiments.

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