Another approach has been where separate physics-informed neural networks learned the tensor product. They reformulated the initial optimization problem to be s

Another approach has been where separate physics-informed neural networks learned the tensor product. They reformulated the initial optimization problem to be structured as tensors. I assume that tensor products could be another factor in improving the actual computations. https://arxiv.org/abs/2408.13101 https://arxiv.org/abs/2408.13101