approx-chol

This product includes algorithmic ideas and adapted implementation patterns from
Laplacians.jl (https://github.com/danspielman/Laplacians.jl), especially around
approximate Cholesky routines.

Laplacians.jl copyright:
Copyright (c) 2015-2016 Daniel A. Spielman and other contributors.

The Laplacians.jl-derived material is retained under the MIT License.
See LICENSE-MIT for the full MIT text.

Additional modifications and surrounding implementation in this repository are
copyright (c) 2026 appliedAI Institute for Europe gGmbH and contributors.
