On Converse Theorem of Best Approximation by Polynomials in Bergman Spaces H_q^p(p>0,q>1)  

作　　者：邢富冲 

机构地区：[1]Department of Mathematics,Central Institute for Nationalities,Beijing 100081

出　　处：《Chinese Quarterly Journal of Mathematics》1993年第4期89-98,共10页数学季刊（英文版）

基　　金：This paper is a part of the author's series of letures at the Mathematical Institute of the Hungarian Academy of Sciences while visiting Hungary sent by the state Education Committee,the People's Republic of China.

摘　　要：A Bernstein type theorem and a converse theorem of best approximation by polynomials in Bergman spaces Hq^p(p>0,q>1) are proved.Some proofs and results in [1] are in proved.

关 键 词：Bergman spaces H_q^p(p>0 q>1) integral modulus of continuity Bernsterin type inequality best approximation by polynomial converse theorem 

分 类 号：O174.41[理学—数学] O174.14[理学—基础数学]