Uniformly locally univalent harmonic mappings associated with the pre-Schwarzian norm
نویسندگان
چکیده
منابع مشابه
The norm of pre-Schwarzian derivatives on bi-univalent functions of order $alpha$
In the present investigation, we give the best estimates for the norm of the pre-Schwarzian derivative $ T_{f}(z)=dfrac{f^{''}(z)}{f^{'}(z)} $ for bi-starlike functions and a new subclass of bi-univalent functions of order $ alpha $, where $Vert T_{f} Vert= sup_{|z|
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ژورنال
عنوان ژورنال: Indagationes Mathematicae
سال: 2018
ISSN: 0019-3577
DOI: 10.1016/j.indag.2017.12.006