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Certain Coefficient Estimate Problems for Three-Leaf-Type Starlike Functions
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DOI：10.3390/fractalfract5040137.png)
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Abstract
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In our present investigation, some coefficient functionals for a subclass relating to starlike functions connected with three-leaf mappings were considered. Sharp coefficient estimates for the first four initial coefficients of the functions of this class are addressed. Furthermore, we obtain the Fekete-Szego inequality, sharp upper bounds for second and third Hankel determinants, bounds for logarithmic coefficients, and third-order Hankel determinants for two-fold and three-fold symmetric functions.
Keywords:
starlike functions
subordinations
three-leaf function
coefficient bounds
logarithmic coefficients
Hankel determinant
two- and three-fold symmetric functions
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3.3
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