期刊名称:International Journal of Mathematics and Mathematical Sciences
印刷版ISSN:0161-1712
电子版ISSN:1687-0425
出版年度:1999
卷号:22
DOI:10.1155/S0161171299226051
出版社:Hindawi Publishing Corporation
摘要:We consider the class of univalent functions defined by the
conditions f(z)/z≠0 and |(z/f(z))′​′|≤α,|z|<1, where f(z)=z