2 papers
math.NA2026
Divergence-free interpolation of tangential vector fields via matrix-valued kernels
Zhengjie Sun, Lishuo Dong, Biao Huang
We develop and analyze a family of divergence-free kernel interpolation methods for tangential vector fields on the unit sphere. Starting from scalar radial kernels in Euclidean sp…
math.NA2026
Error estimates for vector field interpolation based on generalized matrix-valued kernels
Zhengjie Sun, Lishuo Dong, Leevan Ling
Matrix-valued kernels provide a flexible framework for approximating vector fields from scattered data, especially when structural constraints such as divergence-free or curl-free…