Hybrid Reconstruction of Admissible Spline Spaces from Locally Modified Unclamped Patches for Isogeometric Analysis

arXiv cs.GR details a spline reconstruction method that keeps exact CAD geometry while allowing local knot insertion, degree elevation, and basis edits. The catch is continuity: the new hybrid operator rebuilds a globally admissible space with non-negative basis functions and partition of unity, which is the kind of machinery isogeometric analysis needs for robust simulation workflows.