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On coefficient functional and Bohr-radius for some classes of analytic functions

UDC 517.5 We examine sharp bounds of coefficient functionals, such as Zalcman functional, second-order Hankel determinant, and third-order Toeplitz and Hermitian–Toeplitz determinants for the class of analytic functions. Growth estimates and bounds for the difference of successive coefficients are ...

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Bibliographic Details
Date:	2026
Main Authors:	Palani, Jeyaraman Muthusamy, Raman, Parvatham, Habibullah, Aaisha Farzana
Format:	Article
Language:	English
Published:	Institute of Mathematics, NAS of Ukraine 2026
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/8397
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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