On dimension and existence of local bases for multivariate spline spaces
On dimension and existence of local bases for multivariate spline spaces
复制标题
关于多元样条空间的维数和局部基的存在性
DOI:
10.1016/0021-9045(92)90087-5
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发表时间:
1992
影响因子:
0.9
通讯作者:
Maritza Sirvent
中科院分区:
文献类型:
--
作者:
P. Alfeld;L. Schumaker;Maritza Sirvent
We consider spaces of splines in k variables of smoothness r and degree d defined on a polytope in R k which has been divided into simplices. Bernstein-Bézier methods are used to develop a framework for analyzing dimension and basis questions. Dimension formulae and local bases are found for the case r= 0 and general k. The main result of the paper shows the existence of local bases for spaces of trivariate splines (where k= 3) whenever d> 8r.