append scikit-sparse to Sparse linear solvers

[gdmcbain]

Sparse Cholesky factorization is awesome for fast timestepping in linear time-invariant parabolic problems like the heat equation with constant time-stepping. scikit-sparse makes it available for SciPy. It's not in SciPy because of the licence on the underlying CHOLMOD (too copyleft or something, dunno, ask a lawyer).

[nschloe]

NOTE: This library is solid and works well, but no longer actively developed. Please let us know if you wish to take over development.

Hm.

[gdmcbain]

Yeah, sparse Cholesky factorization is a basic tool in finite element simulation and, as they say, scikit-sparse 'is solid and works well' for now (see, e.g. Heat equation in scikit-fem), but being unmaintained is a worry. One for a wishlist, perhaps, rather than an awesome list.