A trivariate clough—tocher scheme for tetrahedral data

Alfeld, 1984, A discrete C1 interpolant for tetrahedral data, Rocky Mountain J. Math., 14, 5, 10.1216/RMJ-1984-14-1-5 Alfeld, 1984, Multivariate perpendicular interpolation, SIAM J. Numerical Analysis Alfeld, 1984 Alfeld, 1984, A trivariate Clough—Tocher scheme for tetrahedral data, 10.1016/0167-8396(84)90029-3 Alfeld, 1984 Barnhill, 1981, C1 Quintic interpolation over triangles: Two explicit representations, Int. J. for Num. Meth. in Eng., 17, 1763, 10.1002/nme.1620171203 Barnhill, 1984, Three- and four-dimensional surfaces, Rocky Mountain J. Math., 14, 77, 10.1216/RMJ-1984-14-1-77 Farin, 1983, Smooth interpolation to scattered 3D data Farin, 1980, Bézier polynomials over triangles Hearn, 1983 Strang, 1973 Ženišek, 1973, Polynomial approximation on tetrahedrons in the finite element method, J. Approx. Theory, 7, 334, 10.1016/0021-9045(73)90036-1