NEW CRITERIA FOR CLOSE-TO-CONVEXITY AND SPIRALLIKENESS

Mamoru Nunokawa; Oh Sang Kwon; Young Jae Sim; Nak Eun Cho

doi:10.11948/20210240

2023 Volume 13 Issue 3

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Mamoru Nunokawa, Oh Sang Kwon, Young Jae Sim, Nak Eun Cho. NEW CRITERIA FOR CLOSE-TO-CONVEXITY AND SPIRALLIKENESS[J]. Journal of Applied Analysis & Computation, 2023, 13(3): 1108-1118. doi: 10.11948/20210240

Citation:

Mamoru Nunokawa, Oh Sang Kwon, Young Jae Sim, Nak Eun Cho. NEW CRITERIA FOR CLOSE-TO-CONVEXITY AND SPIRALLIKENESS[J]. Journal of Applied Analysis & Computation, 2023, 13(3): 1108-1118. doi: 10.11948/20210240

NEW CRITERIA FOR CLOSE-TO-CONVEXITY AND SPIRALLIKENESS

1.
University of Gunma, Hoshikuki-Cho 798-8, Chuou-Ward, 260-0808 Chiba, Japan
2.
Department of Mathematics, Kyungsung University, Busan 48434, Korea
3.
Department of Applied Mathematics, Pukyong National University, Busan 48513, Korea

Author Bio: Email: mamorununokawa1983@gmail.com(M. Nunokawa); Email: oskwon@ks.ac.kr(O. S. Kwon); Email: yjsim@ks.ac.kr(Y. J. Sim)
Corresponding author: Email: necho@pknu.ac.kr(N. E. Cho)
Fund Project: The fourth author(N. E. Cho) was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2019R1I1A3A0105086)

Abstract

Abstract

The aim of the present paper is to investigate several new criteria on a function to be strongly close-to-convexity, spirallikeness or starlikeness by using a new methodology.
- Univalent functions /
- strongly close-to-convex functions /
- spirallike functions /
- starlike functions
MSC: 30C45

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References

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