8 citations · 15 across the 6 of their papers we have counts for
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Radius of Starlikeness for Classes of Analytic Functions
Kanika Khatter, See Keong Lee, V. Ravichandran
We consider normalized analytic function on the open unit disk for which either , or f…
Bohr operator on analytic functions
Yusuf Abu-Muhanna, Rosihan M. Ali, See Keong Lee
For and a fixed in the unit disk, the Bohr operator is given by \[\mathcal{M}_r (f) = \sum_{n=0}^{\infty} |a_n|…
On classes of meromorphic locally univalent functions defined by differential inequalities
See Keong Lee, Saminathan Ponnusamy, Karl-Joachim Wirths
n this article we consider functions meromorphic in the unit disk. We give an elementary proof for a condition that is sufficient for the univalence of such functions which also co…
Starlikeness of the generalized Bessel function
Rosihan M. Ali, See Keong Lee, Saiful R. Mondal
For a fixed the radius of starlikeness of positive order is obtained for each of the normalized analytic functions \begin{align*} \mathtt{f}_{a, ν}(z)&…
On A Subclass of Close-to-Convex Functions
Yao Liang Chung, See Keong Lee, Maisarah Haji Mohd
In this paper, we introduce a subclass of close-to-convex functions defined in the open unit disk. We obtain the inclusion relationships, coefficient estimates and Fekete-Szego ine…
Bounds for the Second Hankel Determinant of Certain Univalent Functions
Lee See Keong, V. Ravichandran, Shamani Supramaniam
The estimates for the second Hankel determinant a_2a_4-a_3^2 of analytic function f(z)=z+a_2 z^2+a_3 z^3+...b for which either zf'(z)/f(z) or 1+zf"(z)/f'(z) is subordinate to certa…