摘要
In this paper, we shall point out that the Multidimensional Baskakov opera- tors are unbounded in . Then we give a inverse theorems for multivariate Baskakov operators with Jacobi weights. A crucial tools in our approach is a decompo- sition technique and a new type weights norm and flew K-function
本文首先指出一类多元Ｂａｓｋａｋｏｖ算子在通常的加权范数下是无界的．然后给出了一类新的加权范数，在此范数下它是压缩的．最后利用多元分解技巧，解决了多元Ｂａｓｋａｋｏｖ算子加权逼近的特征刻划文问题．
