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@praksharma Hi. Thank you very much for your reply. What I'm dealing with is the problem of diffusion in porous media, where the fluid diffuses with pressure from a rectangle...

@praksharma Thank you for your prompt reply. Maybe I misunderstood what you were saying about the solution. When I say there is no solution, I mean there is no analytical...

@praksharma Thanks for sharing. Now I am again confused about the solution. Adding real solution data to DeepXDE should only be used to calculate residuals and relative errors, as in...

@praksharma Thank you for your patient explanation. Now I understand what you mean. The problem I'm trying to solve is the diffusion of liquid through the soil after leaking from...

@praksharma Thank you for your prompt reply! The second rectangle is the one I used to represent the simplified hole. What if my goal is to build a Data-driven PDE...

@praksharma Thank you very much for your help. Now my model is working very well. And when I say it works well, I mean my two-dimensional model. Now I want...

@lululxvi Or is there no source code for the cylinder in the DeepXDE library?

@praksharma Thank you for your reply! You mean I can just go to `data = dde.data.timepde(...)` add anchors for training, without setting geometry?

@praksharma Thank you for your help. This scheme is feasible. I can easily implement time-independent problems when I use the scheme you provide. For example, Poission_Lshape. But I had trouble...

By the way, what should `geomtime` change in the following code if I do not set the geometry region? `bc = dde.icbc.DirichletBC(geomtime, ...)` `data = dde.data.TimePDE(geomtime, ... anchors=X)`