activity
20112022
most citedCoefficient estimates for bi-univalent Ma-Minda starlike and convex functions

232 citations · 476 across the 15 of their papers we have counts for

collaborators

17 papers

math.CV2022

The Booth Lemniscate Starlikeness Radius for Janowski Starlike Functions

Somya Malik, Rosihan M Ali, V. Ravichandran

The function , \, , maps the open unit disc onto the interior of a domain known as the Booth lemniscate. Associated with this function…

math.CV2021★ 1 cited

Starlikeness of Analytic Functions with Subordinate Ratios

Rosihan M. Ali, Kanika Sharma, V. Ravichandran

Let be a non-vanishing analytic function in the open unit disc with . Consider the class consisting of normalized analytic functions whose ratios , $g(z)…

math.CV2019★ 6 cited

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|…

math.CV2019

Differential Inequalities and Univalent Functions

Rosihan M. Ali, Milutin Obradović, Saminathan Ponnusamy

Let be the class of analytic functions in the unit disk $\ID$ with the normalization , and satisfying the condition $$\left |z^2\left (\frac{z}{f(z)}…

math.CV2018★ 18 cited

The spherical metric and univalent harmonic mappings

Yusuf Abu Muhanna, Rosihan M. Ali, Saminathan Ponnusamy

Let be a harmonic univalent map in the unit disk , where and are analytic. We obtain an improved estimate for the second coefficient of .…

math.CV2017

Characterizing Rotationally Typically Real Logharmonic Mappings

Najla M. Alarifi, Zayid Abdulhadi, Rosihan M. Ali

This paper treats the class of normalized logharmonic mappings f(z) = zh(z)bar{g(z)} in the unit disk satisfying ϕ(z) = zh(z)g(z) is analytically typically real. Every such mapping…