Certain subclasses of univalent and bi-univalent functions related to shell-like curves connected with Fibonacci numbers

Singh, Gurmeet; Singh, Gagandeep; Singh, Gurcharanjit

doi:10.2478/gm-2020-0010

Abstract

This paper is concerned with certain subclasses of univalent and bi-univalent functions related to shell-like curves connected with Fibonacci numbers. We find estimates of the initial coefficients |a₂| and |a₃| for the functions in these classes. Also we investigate upper bounds for the Fekete-Szegö functional and second Hankel determinant for these classes.

References

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Certain subclasses of univalent and bi-univalent functions related to shell-like curves connected with Fibonacci numbers

Abstract

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