三峡大学学报(自然科学版)2017,Vol.39Issue(4):110-112,3.DOI:10.13393/j.cnki.issn.1672-948X.2017.04.023
正则的正实部函数的导数估计
Estimation of Derivatives for Regular Positive Real Part Functions
摘要
Abstract
The problem of estimating the nth derivative of regular positive real part functions:g(z)=c0+c1z +…+cnzn+…,which are regular in |z|<1 and Reg(z)>0,is discussed.With the principle of inductive method and the characters of regular positive real part functions,an estimation formula of the nth derivative for the functions is presented.关键词
正实部函数/正则函数/导数/估计Key words
regular positively real part function/regular function/derivatives/estimation分类
数理科学引用本文复制引用
郭怡冰,苑文法,庞永峰..正则的正实部函数的导数估计[J].三峡大学学报(自然科学版),2017,39(4):110-112,3.基金项目
陕西省自然科学基金(2014JM1010) (2014JM1010)