Abstract：In this paper,two harmonic univalent function subclasses SHλ(α) and SH-λ(α) defined by Salagean are introduced.The sufficient and necessary condition about SH-λ(α) is shown.The distortion properties and convex characteristic of the class SH-λ(α) a
李惠珠. Salagean类负系数单叶调和函数的偏差估计[J]. 南昌大学学报（理科版）, 2011, 35(05): 1-.
LI Hui-zhu(Department of Computer Science,Guangdong College of Industry and Commerce,Guangzhou 510510,China). . , 2011, 35(05): 1-.
2011, Vol. 35 