On Converse Theorem of Best Approximation by Polymonials in Bergman Spaces Hq^p（p〉0,q〉1）

• 作 者: 邢富冲
• 机 构: DepartmentofMathematics
• 出 处: 数学季刊：英文版
• 发表日期: 1993年4期
• 关键词: BERGMAN空间 多项式逼近 最佳逼近 逆定理 Bers空间 复平面 解析函数 BERNSTEIN不等式 连续性积分模 Bergman spaces H_q~
• 基金项目: 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

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.