New properties of the generalized Dini function
Abstract
In this work we study some properties of the normalized form of generalized Dini function like close-to-convexity of some order and close-to-convex with respect to another convex function. Furthermore, we investigate sufficient conditions which these functions are uniformly $k$-starlike functions of complex order $b$ in the open unit disk, and some consequences of the main results are also presented.
****************************************************************************************************************************
Keywords
References
- [1] D. Bansal, M.K. Soni and A. Soni, Certain geometric properties of the modified Dini function, Anal. Math. Phys. 9, 1383–1392, 2019.
- [2] Á. Baricz, E. Deniz and N. Yagmur, Close-to-convexity of normalized Dini functions, Math. Nachr. 289, 1721–1726, 2016.
- [3] Á. Baricz, P.A. Kupán and R. Szász, The radius of starlikeness of normalized Bessel functions of the first kind, Proc. Amer. Math. Soc. 142 (6), 2019–2025, 2014.
- [4] Á. Baricz, S. Ponnusamy and S. Singh, Modified Dini functions: monotonicity pat- terns and functional inequalities, Acta Math. Hungar. 149 (1), 120–142, 2016.
- [5] Á. Baricz, E. Toklu and E. Kadioğlu, Radii of starlikeness and convexity of Wright functions, Math. Commun. 23 (1), 97–117, 2018.
- [6] S.Z.H. Bukhari, J. Sokól and S. Zafar, Unified approach to starlike and convex func- tions involving convolution between analytic functions, Results Math. 73, Article num- ber: 30, 2018.
- [7] M.U. Din, M. Raza, S. Hussain and M. Darus, Certain geometric properties of gen- eralized Dini functions, J. Funct. Spaces, 2018, Art. ID 2684023, 1–9, 2018.
- [8] A.W. Goodman, On uniformly convex functions, Ann. Polon. Math. 56, 87–92, 1991.
Details
Primary Language
English
Subjects
Mathematical Sciences
Journal Section
Research Article
Authors
Teodor Bulboaca
0000-0001-8026-218X
Romania
Publication Date
October 6, 2020
Submission Date
April 11, 2019
Acceptance Date
January 6, 2020
Published in Issue
Year 2020 Volume: 49 Number: 5