د.نجاة, مفتاح العبار
(جامعة بنغازي, 2011-01-01)
In applying a generalized linear derivative operator Dα,δ(m, q, λ), a
new subclass of analytic functions denoted by S
α,δ(m, q, λ, φ), is introduced.
For this class, sharp bounds for the Fekete- Szeg¨o functional |a3 − ...