%0 Journal Article
%T THE INTERPOLATION AND APPROXIMATION BY DOUBLE-PERIODIC QUADRATIC SPLINES<br>双周期二次样条的插值逼近
%A 刘焕文
%J 计算数学
%D 1992
%I 
%X §1.引言 考虑矩形区域Ω=0,1]?0,1],Δ_(mn)~((2))为Ω的均匀四方向网,它将Ω分成4mn个小三角形单元. 样条空间 S_2~1(Δ_(mn)~((2)))由满足以下条件的S(x,y)组成:
%K 样条
%K 二次
%K 双周期
%K 逼近
%K 插值
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=CC77F3CEF526D9CF0B3021650FB4E57E&aid=7B58F1539FB806EA7DE1D88DC0EA39B9&yid=F53A2717BDB04D52&vid=F3583C8E78166B9E&iid=0B39A22176CE99FB&sid=04445C1D2BDA24EE&eid=3F0AF5EDBC960DB0&journal_id=0254-7791&journal_name=计算数学&referenced_num=2&reference_num=3