Chinese Quarterly Journal of Mathematics ›› 2018, Vol. 33 ›› Issue (3): 272-277.doi: 10.13371/j.cnki.chin.q.j.m.2018.03.005

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Estimation of Derivatives for Bounded Regular Vanishing Functions

  

  1. College of Sciences, Xijing University
  • Accepted:2015-11-25 Online:2018-09-30 Published:2020-10-08
  • About author:GUO Yi-bing(1983{), female, native of Xian, Shaanxi, a lecturer of Xijing University, M.S.,engages in geometric function theory.

Abstract: In this paper, we mainly discuss the problem of estimating the n-th derivative for bounded regular vanishing functions. The estimation of the n-th derivative for the function is deduced by the 1-th and 2-th derivative. 

Key words: Vanishing function, bounded regular functions, estimation, derivative

CLC Number: