ResearchBenchmarksReaction-diffusion PINN on Reaction-diffusion nu=5 PINN (train)Reaction-diffusion PINN on Reaction-diffusion nu=5 PINN (train)Follow2.27Train LossL-BFGS1.96724.01116.0558.0989Jul 8, 2026Evaluation resultsMethodMethodLinksTrain LossRelative L2 ErrorL-BFGS2026.072.279.57LM2026.072.939.59RNC-LM2026.074.436.56LM-GA2026.079.849.57