TY - JOUR T1 - On the Cardinalities of Interpolating Restricted Ranges AU - Guo-Liang Xu & Jia-Kai Li JO - Journal of Computational Mathematics VL - 3 SP - 210 EP - 214 PY - 1987 DA - 1987/05 SN - 5 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/9544.html KW - AB -

The cardinalities of interpolating restricted range $R_1(m,n)$ for best rational approximation are discussed. The conditions under which the cardinality of $R_1(m,n)$ is 0 or 1 or $∞$ are established by using the results obtained in [3,4].