Bernstein-Be´zier polynomials on spheres and sphere-like surfaces
Computer Aided Geometric Design
Dimension and local bases of homogeneous spline spaces
SIAM Journal on Mathematical Analysis
Fitting scattered data on sphere-like surfaces using spherical splines
Journal of Computational and Applied Mathematics - Special issue on scattered data
Algorithm 772: STRIPACK: Delaunay triangulation and Voronoi diagram on the surface of a sphere
ACM Transactions on Mathematical Software (TOMS)
BPX-type Preconditioners for Second and Fourth Order Elliptic Problems on the Sphere
SIAM Journal on Numerical Analysis
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We present an overlapping domain decomposition technique for solving the Laplace---Beltrami equation on the sphere with spherical splines. We prove that the condition number of the additive Schwarz operator is bounded by $O\left(H^2/h^2\right)$ , where H and h are the sizes of the coarse and fine meshes, respectively. In the case that the degree of the splines is even, a better bound $O\left(\max_{1\leq k \leq J}\left(1+H_k/\delta_k\right)\right)$ is proved. Here J is the number of subdomains, H k is the size of the kth subdomain, and 驴 k is the size of the overlap of the kth subdomain. The method is illustrated by numerical experiments on large point sets taken from magsat satellite data.