Kyungpook Mathematical Journal

Department of Mathematics, Kyungpook National University (경북대학교 자연과학대학 수학과)
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Some Coefficient Inequalities Related to the Hankel Determinant for a Certain Class of Close-to-convex Functions

  • Sun, Yong (School of Science, Hunan Institute of Engineering) ;
  • Wang, Zhi-Gang (Mathematics and Computing Science, Hunan First Normal University)
  • Received : 2017.11.14
  • Accepted : 2019.03.04
  • Published : 2019.09.23
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Abstract

In the present paper, we investigate the upper bounds on third order Hankel determinants for certain class of close-to-convex functions in the unit disk. Furthermore, we obtain estimates of the Zalcman coefficient functional for this class.

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References

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