Norlyda Mohamed and Daud Mohamad and Shaharuddin Cik Soh
Extremal Properties of Generalized Class of Closetoconvex Functions
1589 - 1592
2011
5
10
International Journal of Mathematical and Computational Sciences
https://publications.waset.org/pdf/14045
https://publications.waset.org/vol/58
World Academy of Science, Engineering and Technology
Let Gα ,β (γ ,δ ) denote the class of function
f (z), f (0) f ′(0)−1 0 which satisfied e δ αf ′(z) βzf ′′(z)> γ i Re
in the open unit disk D z ∈ z < 1 for some α ∈ (α ≠ 0) ,
β ∈ and γ ∈ (0 ≤γ 0 . In
this paper, we determine some extremal properties including
distortion theorem and argument of f ′( z ) .
Open Science Index 58, 2011