δ −POLYNOMIAL BOUNDS FOR A SUBCLASS OF UNIVALENT FUNCTION REGARDING MODIFIED SIGMOID FUNCTION

Authors

  • O. Fagbemiro Department of Mathematics, Federal University Agriculture Abeokuta, Abeokuta, Nigeria P.M.B. 2240, Abeokuta, Nigeria. Author
  • J.O. Hamzat Department of Mathematics, University of Lagos, Lagos, Nigeria Author
  • E. Ukeje Department of Mathematics, Michael Okpara University of Agriculture Umudike P.M.B. Umuahia, Nigeria. Author
  • A. T. Oladipo Pure and Applied Mathematics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria P.M.B. 4000, Ogbomoso, Nigeria. Author

Keywords:

Salagean operator, Chebyshev polynomials, sigmoid function, Analytic function

Abstract

In this article, the authors investigated a new subclass of analytic univalent function which relate to ameliorated sigmoid function and the classical special polynomial function known as the Chebyshev polynomials by employing the concept of subordination. This investigation produced new interesting coefficient bounds. The famous Fekete-Szego inequalities were also pointed out. 

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References

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Published

2022-03-01

How to Cite

δ −POLYNOMIAL BOUNDS FOR A SUBCLASS OF UNIVALENT FUNCTION REGARDING MODIFIED SIGMOID FUNCTION. (2022). The Journals of the Nigerian Association of Mathematical Physics, 63, 45 –54. https://nampjournals.org.ng/index.php/home/article/view/109

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