摘要
本文引入一种连续模的新的控制泛函,利用直接方法(避免使用K-泛函)得到了一般赋范空间上连续函数的Korovkin型定理,得到的结果与H.Gonska用K-泛函得到的结果相比各有优点。
In this paper we define a new majorant of the modalus of continuity and get a Korovkin-type theorem on the compact metric space by direct technique. we also compare our resultwith the theorem of H. Gmska which was originally proved via K-functional.
关键词
赋范空间
连续函数
KOROVKIN定理
least concave majorant,least right majorant,Korovkin-type theorem.