A two-stage, multi-scale fPINN is claimed to reach 10^-7 accuracy, but the reported numbers are inconsistent with the L1 discretization error on the coarse grid.
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Multiprecision computing for multistage fractional physics-informed neural networks
A two-stage, multi-scale fPINN is claimed to reach 10^-7 accuracy, but the reported numbers are inconsistent with the L1 discretization error on the coarse grid.