232 citations · 512 across the 60 of their papers we have counts for
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Coefficient Inequalities for Starlikeness and Convexity
Rosihan M. Ali, Moradi Nargesi Mahnaz, V. Ravichandran
For an analytic function f(z)=z+\sum_{n=2}^\infty a_n z^n satisfying the inequality \sum_{n=2}^\infty n(n-1)|a_n|\leq β, sharp bound on is determined so that is either star…
Inclusion Criteria for Subclasses of Functions and Gronwall's Inequality
Rosihan M. Ali, Mahnaz M. Nargesi, V. Ravichandran +1
A normalized analytic function f is shown to be univalent in the open unit disk D if its second coefficient is sufficiently small and relates to its Schwarzian derivative through a…
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…
Radii of Starlikeness Associated with the Lemniscate of Bernoulli and the Left-Half Plane
Rosihan M. Ali, Naveen Jain, V. Ravichandran
A normalized analytic function f defined on the open unit disk in the complex plane is in the class SL if zf'(z)/f(z) lies in the region bounded by the right-half of the lemniscate…
Radii of Starlikeness and Convexity of Analytic Functions Satisfying Certain Coefficient Inequalities
V. Ravichandran
For , the sharp radii of starlikeness and convexity of order for functions of the form whose Taylor coefficients satisfy the conditi…
Subordination and superordination for multivalent functions defined by linear operators
S. Sivaprasad Kumar, Virendra Kumar, V. Ravichandran
In this paper, certain linear operators defined on -valent analytic functions have been unified and for them some subordination and superordination results as well as the corres…