Fourth Hankel Determinant for the Set of Star-Like Functions

Muhammad Arif, Lubna Rani, Mohsan Raza and Pawel Zaprawa

Mathematical Problems in Engineering, 2021, vol. 2021, 1-8

Abstract:

In this paper, we derive a bound of the fourth Hankel determinant for the class of star-like functions. We also consider this problem for 2-fold and - fold symmetric star-like functions. In this case, we obtain sharp results.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:6674010

DOI: 10.1155/2021/6674010

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