16 citations · 18 across the 4 of their papers we have counts for
4 papers
Sufficient conditions for strong starlikeness
Kanika Sharma, Nak Eun Cho, V. Ravichandran
Let be an analytic function defined on the open unit disc with and . The conditions on complex valued functions , and are obtained…
Sufficient Conditions for Starlike Functions Associated with the Lemniscate of Bernoulli
S. Sivaprasad Kumar, Virendra Kumar, V. Ravichandran +1
Let -1\leq B<A\leq 1. Condition on β, is determined so that 1+βzp'(z)/p^k(z)\prec(1+Az)/(1+Bz)\;(-1<k\leq3) implies p(z)\prec \sqrt{1+z}. Similarly, condition on βis determined so…
Coefficient, Distortion and Growth Inequalities for Certain Close-to-Convex Functions
Nak Eun Cho, Oh Sang Kwon, V. Ravichandran
In the present investigation, certain subclasses of close-to-convex functions are investigated. In particular, we obtain an estimate for the Fekete-Szegö functional for functions b…
A first-order differential double subordination with applications
Rosihan M. Ali, Nak Eun Cho, Oh Sang Kwon +1
Let and belong to a certain class of normalized analytic univalent functions in the open unit disk of the complex plane. Sufficient conditions are obtained for normaliz…