Prakhar Sharma

Can you please use the code container? ``` bc = dde.icbc.OperatorBC(geomtime, lambda x, y, _: outerboundary(x, y), lambda _, on_boundary: on_boundary) ``` ``` def outerboundary(x, y): normal = geom.boundary_normal(x[:2]) #...

Do you know what a Fourier feature is? Or have you looked into the [source code](https://github.com/lululxvi/deepxde/blob/03931b15948395c4642849fd6dd5eab07e4ae1a4/deepxde/nn/tensorflow_compat_v1/msffn.py#L6)? The `sigmas` are the list of standard deviation of the distribution of fourier feature...

Ok, I can confirm that this feature has been added. It works on my Jupyter lab 3.4.2. I can see the current directory on the top of every launcher page....

Solving Waves equations is hard. Even Nvidia Modulus experiences lots of problems. Recently, they have implemented FNOs (Fourier neural operator) to solve Wave equations. Have a look at it. I...

Sorry for the interruption. 1. The true solution does not participate in the training. It just computes the test error to see the performance of the network. I do agree...

@lululxvi Thanks a lot for the paper. will go through it. Meanwhile, Nvidia launched the new Modulus 22.03, last Friday. They are using FNOs. I am just checking how suitable...

I can immediately say that you are not gonna solve this problem with PINNs. Your PDE is nothing but 2D steady-state heat conduction problem with space dependent conductivity. If the...

Here I solved a steady-state problem with 4 discontinuous corners with my own code (not DeepXDE). DeepXDE gains loss around the edges for some reason.  You can't solve these...

Sorry, I can't share the code (we are writing a paper). You can learn more about importance sampling [here](https://arxiv.org/abs/2104.12325). Their code is public but not open source, so we wrote...

Wang's Learning rate annealing comprises a two transformer layer residual connection.