fpinn相关

[FloraGong]

咨询您如果周期边界或者非0边界如何处理fpinn中的分数阶拉普拉斯算子离散。

[lululxvi]

I don't know.

[wangxiao2019]

Hello! Can you integrate the Fractional and FractionalTime classes from fpde into the model? This is because when computing the general form of spatial or temporal fractional partial differential equations, there's an issue of 'FractionalTime' object has no attribute 'losses_train'.

[lululxvi]

I don't understand your question. Can you be more specific?

[wangxiao2019]

I don't understand your question. Can you be more specific? "For example, I want to solve a spatial two-dimensional fractional-order and time one-dimensional integer-order equation as follows: $\frac{\partial u(x, y, t)}{\partial t}+(-\Delta)^{\alpha / 2} u(x, y, t)=f(x, y, t)$ For this, I set its geometric domain as: geom = dde.geometry.Disk([0, 0], 1) timedomain = dde.geometry.TimeDomain(0, 1) geomtime = dde.geometry.GeometryXTime(geom, timedomain)

Then, when I call the dde.data.TimeFPDE class, data = dde.data.TimeFPDE( geomtime, fpde, alpha, [bc, ic], [20, 100], num_domain=50, num_boundary=50, solution=func, meshtype="dynamic", num_test=1000 ) I get an error.

How should I set up the code for such two-dimensional or three-dimensional fractional-order equations with time dependence?"

[lululxvi]

It is strange. Do other demo examples work?