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http://dx.doi.org/10.11568/kjm.2022.30.1.81

HANKEL DETERMINANT PROBLEMS FOR CERTAIN SUBCLASSES OF SAKAGUCHI TYPE FUNCTIONS DEFINED WITH SUBORDINATION  

Singh, Gagandeep (Department of Mathematics, Khalsa College)
Singh, Gurcharanjit (Department of Mathematics, G.N.D.U. College)
Publication Information
Korean Journal of Mathematics / v.30, no.1, 2022 , pp. 81-90 More about this Journal
Abstract
The present investigation is concerned with the estimation of initial coefficients, Fekete-Szegö inequality, second Hankel determinants, Zalcman functionals and third Hankel determinants for certain subclasses of Sakaguchi type functions defined with subordination in the open unit disc E = {z ∈ ℂ : |z| < 1}. The results derived in this paper will pave the way for the further study in this direction.
Keywords
Analytic functions; Sakaguchi type functions; subordination; coefficient problem; Hankel determinant;
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