id: 06001674 dt: j an: 06001674 au: Xu, Yingxiang; Guan, Lütai; Xu, Weizhi ti: Trivariate odd-degree polynomial natural spline interpolation for scattered data. so: Math. Numer. Sin. 33, No. 1, 37-47 (2011). py: 2011 pu: Chinese Academy of Sciences, Institute of Computational Mathematics and Scientific/Engineering Computing, Beijing la: ZH cc: ut: scattered data interpolation; trivariate odd-degree polynomials; natural spline ci: li: ab: Summary: The aim of this paper is to solve the complicated interpolation problem for trivariate scattered data, a trivariate polynomial natural spline interpolation method is proposed. In the case of minimizing the objective functional with natural boundary conditions, the solution of the interpolation problem is constructed by spline function methods in Hilbert spaces, and which in every block is a trivariate odd-degree polynomial. Its expression is very simple and the coefficients can be decided by a linear system whose coefficient matrix is symmetric. rv: