15 citations · 17 across the 4 of their papers we have counts for
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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…
Estimates for the Initial Coefficients of Bi-univalent Functions
S. Sivaprasad Kumar, Virendra Kumar, V. Ravichandran
A bi-univalent function is a univalent function defined on the unit disk with its inverse also univalent on the unit disk. Estimates for the initial coefficients are obtained for b…
On the Fekete-Szegö inequality for Certain class of analytic functions
S. Sivaprasad Kumar, Virendra Kumar
In the present investigation, we derive Fekete-Szegö inequality for the class , introduced here. In addition to that, certain applications of ou…
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…