Exploring Physics-Informed Neural Networks for the Generalized Nonlinear Sine-Gordon Equation

Figure 8

The line plots of the comparison of PINN-predicted with the exact solution and the corresponding absolute error for NLSGE dirichlet BCs case at using the adam optimization algorithm (the first row (a) and (b)), the L-BFGS-B optimization algorithm (the second row (c) and (d)), and the combined adam and L-BFGS-B optimization algorithms (the third row (e) and (f)).

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