Calum Skene

[d3] Spherical shell - potential boundary conditions

2

Hi I've seen a recent commit say that *test_shell_dynamo.py* and *test_BVP_shell.py* do not seem to currently work. I believe this is in part to do with the potential boundary conditions...

HI I encountered a problem a while a go with a code involving the transpose of the velocity gradient `d3.trans(d3.grad(u))`. The forward and backwards regularity recombination functions throw an error...

Hi I've noticed that *local_group_arrays* now returns an error. When running `m, ell, *_ = d.coeff_layout.local_group_arrays(b.domain,scales=1)` I get an error when the function tries to find the chunk_shape ``` chunk_shape...

LBVP gets stuck at the build_solver stage

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Hi I've encountered an issue when trying to solve an LBVP to find the vector potential from a magnetic field. I've attached a code which shows the issue. By setting...

Hi It would be nice for there to be a spherical wedge basis that can solve for a subset of wavenumbers in phi. For example, instead of having wavenumbers m...

If the phi resolution in a disk is exactly 2 then the sin(0) mode is not zeroed. For example if I set `Nr=1` and `Nphi=2` and make a field `f`...

Hi This pull request adds the Generalised Stiefel manifold. It's heavily based on the manopt version [here](https://github.com/NicolasBoumal/manopt/blob/335d1bbaf8bb916f7a5a7adead6c87b171b093c0/manopt/manifolds/stiefel/stiefelgeneralizedfactory.m). There's a few ways the matrix $\mathbf{B}$, can be provided (numpy array, scipy...