On certain properties of some subclasses of univalent functions
DOI:
https://doi.org/10.24193/subbmath.2023.4.06Keywords:
univalent, inverse functions, coefficients, sharp boundAbstract
In this paper we determine the disks \(|z|<r\le1\) where for different classes of univalent functions, we have the property
\[{\rm Re}\left\{2\frac{zf'(z)}{f(z)}-\frac{z f''(z)}{f'(z)}\right\}>0\qquad (|z|<r).\]
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