S. Kumar

most cited

S^{*} (ϕ)

and

C (ϕ)

-radii for some special functions

7 citations · 8 across the 3 of their papers we have counts for

collaborators

4 papers

math.CV2020

On Convex Dominants of Exact Differential Subordination

S. Sivaprasad Kumar, Shagun Banga

Let $h$ be a non vanishing convex univalent function and $p$ be an analytic function in $D$ . We consider the differential subordination $ψ_{i} (p (z), z p^{'} (z)) ≺ h (z)$ w…

math.CV2020★ 1 cited

A Class of Analytic Functions associated with Sine Hyperbolic Functions

S. Sivaprasad Kumar, Muhammad Ghaffar Khan, Bakhtiar Ahmad +1

We introduce a class of analytic functions subordinate to the function $1 + sinh (z)$ and obtain various necessary and sufficient conditions for functions to be in the…

math.CV2020

On Geometrical Properties of Certain Analytic functions

S. Sivaprasad Kumar, Kamaljeet Gangania

We introduce the class of analytic functions $F (ψ) := {f \in A : (\frac{z f ^{'} ( z )}{f ( z )} - 1) ≺ ψ (z), ψ (0) = 0},$ where $ψ$ is univalent…

math.CV2020★ 7 cited

$S^{*} (ϕ)$ and $C (ϕ)$ -radii for some special functions

S. Sivaprasad Kumar, Kamaljeet Gangania

In this paper, we consider the Ma-Minda classes of analytic functions $S^{*} (ϕ) := {f \in A : (z f^{'} (z) / f (z)) ≺ ϕ (z)}$ and $\mathcal{C}(ϕ):= \{f\in \math…

On Convex Dominants of Exact Differential Subordination

A Class of Analytic Functions associated with Sine Hyperbolic Functions

On Geometrical Properties of Certain Analytic functions

S∗(ϕ) and C(ϕ)-radii for some special functions

$S^{*} (ϕ)$ and $C (ϕ)$ -radii for some special functions