科研之友
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摘要
Important and interesting results which are already known such as those by P%26#243;lya and Schoenberg in (1958), Ba%26#351;g%26#246;ze et al. in (1970), and Ali in (1973), and which are related to convex maps of the unit disc are presented in this note by a more general, unified, and different method. The method considers the product of a nontrivial multiplier with the Norlund means, and shows how the known results indicated above are reproduced again as special cases.
- 出版日期2005
