Bergman空间B_q^p(p>0,q>1)中的多项式最佳逼近的逆定理

Inverse Theorem to the Best Approximation by Polynomials in Bergman Spaces B_q^p(p>0, q>1)

本文在Bergman空间Bqp(p>0,q>1)中得到了关于用多项式逼近该空间函数的最佳逼近误差的阶的估计的逆定理．

In this paper we obtained the inverse theorem estimating the order of the best approximation error by polynomials in Bergman spaces Bp （p 〉 0, q 〉 1）.