GitLab

Move some properties of CoordinateChart to actual properties as to
provide doc-strings for them.

Guess a good `depth` based on `min_shape` if none is specified.

Set the new defaults such that the resulting chart is more precise.

Most notably, extend test_refinement_covariance to also test various
refinement parametrizations.

Adapt to the new error message in JAX for failing to transpose a
refinement field.

Implement a highly efficient refine method for irregular 1D grids.

Instead of a kernel, also accept a set of pre-computed refinement
matrices.

In particular pass on `coerce_fine_kernel`.

Implement an orthogonal approach to modeling GPs: SKI. To be specific,
implement KISS-GP with Toeplitz kernels.

Extends c0912dbb .

To enable stacking refinements, allow skipping the initial application
and computation of the Cholesky decomposition at the zeroth refinement
level.

Expose the translation of distances to various refinement levels to save
redundant code - even though the code is relatively simple.