摘要
利用积分方法和Ｂ网方法给出了Ｓ１２（Δ＊３）中Ｂ样条的积分构造和Ｂ网表示，并利用一元样条的Ｍｏｒｓｄｅｎ恒等式给出了Ｓ１２（Δ＊２）及Ｓ１２（Δ＊３）的保持二次多项式的拟插值算子．
The B spline function in S 1 2(Δ * 3) is constructed by means of the integral method and its B net representation is also presented. Further more, the quasi interpolation operators of S 1 2(Δ * 2) and S 1 2(Δ * 3) which reproduce polynomials of degree two are constructed by using the famous Marsden identity.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1997年第5期504-507,共4页
Journal of Dalian University of Technology
关键词
样条函数
B网方法
拟插值
连续拼接
spline functions/B net method
integral method
quasi interpolation
