Stable approximation and interpolation with C1 quartic bivariate splines

被引:3
|
作者
Davydov, O [1 ]
Schumaker, LL
机构
[1] Univ Giessen, Inst Math, D-35392 Giessen, Germany
[2] Vanderbilt Univ, Dept Math, Nashville, TN 37240 USA
关键词
bivariate splines; scattered data interpolation; stable approximation;
D O I
10.1137/S0036142901384472
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We show how two recent algorithms for computing C-1 quartic interpolating splines can be stabilized to ensure that, for smooth functions, they provide full approximation power with approximation constants depending only on the smallest angle in the triangulation [C. K. Chui and D. Hong, Math. Comp., 65 (1996), pp. 85-98; C. K. Chui and D. Hong, SIAM J. Numer. Anal., 34 (1997), pp. 1472-1482; D. Hong, Approximation Theory VIII, Vol. 1: Approximation and Interpolation, C. K. Chui and L. L. Schumaker, eds., World Scientific, Singapore, 1995, pp. 249-256].
引用
收藏
页码:1732 / 1748
页数:17
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