%0 Journal Article
%T 一个广义样条函数类上的极值问题
%A 孙永生
%J 科学通报
%D 1982
%I 
%X 设q_r(x)=multiply from j=1 to l(x~2-t_j~2),r=2l(l≥1),t_1,…,t_l≥0。D=d/dx是微分算符。给定函数类Ω_(∞0,1])~(2l):f(x)∈Ω_(∞0,1])~(2l),当且仅当f~(21-1)(x)在0,1]上绝对连续,f~(2k)(0)=f~(2k)(1)=0,k=0,…,l-1,且‖q_r(D)f‖L_∞≤1。任一f(x)∈Ω_(∞0,1])~(2l)可表成
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=7C7E63796F062382A606A3A9833B8C05&jid=B40D4BA57FF46E45205A09B4DC283152&aid=7070A63BE3D7C3C9A9EFA7692C72EEAD&yid=3F3D540C9B7906DE&vid=DB817633AA4F79B9&iid=708DD6B15D2464E8&sid=80BBC722D530DB8D&eid=80BBC722D530DB8D&journal_id=0023-074X&journal_name=科学通报&referenced_num=0&reference_num=0