Master Data‑Driven Neural Operators: DeepONet, POD‑DeepONet, FNO‑2D and Time‑Stepping FNO‑1D in One Tutorial
This tutorial presents a comprehensive JAX implementation and analysis of four neural‑operator methods—standard DeepONet, POD‑DeepONet, 2‑D Fourier Neural Operator, and time‑stepping 1‑D FNO—applied to the 1‑D advection equation, comparing their mathematical foundations, parameter counts, training efficiency, and prediction accuracy.
