Coefficient Inequalities for Certain Univalent Analytic Starlike And Convex Functions in Leaf Like Domain Through Jackson Q-Derivative Operator
Authors
Sanjay Issar
Department of Mathematics, Government Dungar College, Bikaner-334001, India (IN)
Hemlata
Department of Mathematics, Tantia University, Sriganganagar-335002, India (IN)
Article Information
DOI: 10.51583/IJLTEMAS.2025.1411000098
Subject Category: Geometric function theory
Volume/Issue: 14/11 | Page No: 1009-1020
Publication Timeline
Submitted: 2025-12-22
Published: 2025-12-22
Abstract
Two subclasses of starlike and convex functions analytic in the unit open disk using q-derivative operator have been investigated in the present paper. The necessary and sufficient condition for the function belonging to these classes have been obtained. We further examine various properties, such as the Hadamard product and the quasi-Hadamard product. The coefficient estimates for the function belonging to these classes are also found.
Mathematics Subject Classification 2020: 30C45, 30C50
Keywords
Starlike, Convex, Hadamard product (or convolution), quasi-Hadamard product, Subordination, , q-derivative operator.
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References
1. S. Agrawal and S. K. Sahoo. A generalization of starlike functions of order α. Hokkaido Mathematical Journal, 46(1):15–27, 2017. Zbl 1361.30017. [Google Scholar] [Crossref]
2. Abdullah Alsoboh, Ala Amourah, Omar Alnajar, Mamoon Ahmed, and Tamer M. Seoudy. Exploring q-fibonacci numbers in geometric function theory: Univalence and shell-like starlike curves. Mathematics, 13(8), 2025. [Google Scholar] [Crossref]
3. Abdullah Alsoboh and Georgia Irina Oros. A class of bi-univalent functions in a leaf-like domain defined through subordination via q-calculus. Mathematics, 12(10), 2024. [Google Scholar] [Crossref]
4. M. K. Aouf. The quasi-hadamard product of certain analytic functions. Applied Mathematics Letters, 21(11):1184–1187, 2008. MR2459845; Zbl 1159.30305. [Google Scholar] [Crossref]
5. M. K. Aouf, A. O. Mostafa, and H. M. Zayed. Convolution properties for some subclasses of meromorphic functions of complex order. Abstract and Applied Analysis, 2015:973613, 2015. Article ID 973613. [Google Scholar] [Crossref]
6. Mihai Aron. Coefficient estimates and fekete-szeg¨o problem for some classes of univalent functions generalized to a complex order. Demonstratio Mathematica, 58, 02 2025. [Google Scholar] [Crossref]
7. N. E. Cho, V. Kumar, S. S. Kumar, and V. Ravichandran. Radius problems for starlike functions associated with the sine function. Bulletin of the Iranian Mathematical Society, 45:213–232, 2019. Zbl 1409.30009. [Google Scholar] [Crossref]
8. H. E. Darwish. The quasi-hadamard product of certain starlike and convex functions. Applied Mathematics Letters, 20:692–695, 2007. Zbl 1111.30009. [Google Scholar] [Crossref]
9. R. M. El-Ashwah, M. K. Aouf, and N. Breaz. On quasi-hadamard products of p-valent functions with negative coefficients defined by using a differential operator. Acta Universitatis Apulensis. Mathematica Informatica, 28:61–70, 2011. Zbl 1274.30034. [Google Scholar] [Crossref]
10. B. A. Frasin and M. K. Aouf. Quasi-hadamard product of a generalized class of analytic and univalent functions. Applied Mathematics Letters, 23:347–350, 2010. Zbl 1186.30015. [Google Scholar] [Crossref]
11. G. Gasper and M. Rahman. Basic Hypergeometric Series. Cambridge University Press, Cambridge, 1990. Zbl 0695.33001. [Google Scholar] [Crossref]
12. H. M. Hossen. Quasi-hadamard product of certain p-valent functions. Demonstratio Mathematica, 33:277–281, 2000. Zbl 0963.30011. [Google Scholar] [Crossref]
13. F. H. Jackson. On q-definite integrals. Quarterly Journal, 41:193–203, 1910. JFM 41.0317.04. [Google Scholar] [Crossref]
14. F. H. Jackson. q-difference equations. American Journal of Mathematics, 32:305–314, 1910. MR1506108; JFM 41.0502.01. [Google Scholar] [Crossref]
15. W. Janowski. Extremal problems for a family of functions with positive real part and for some related families. Annales Polonici Mathematici, 23:159–177, 1970. Zbl 0199.39901. [Google Scholar] [Crossref]
16. S. Kant and P. P. Vyas. Convolution properties for certain subclasses of meromorphic p-valent functions. Journal of Fractional Calculus and Applications, 12(2):197–203, 2021. Zbl 1499.30102. [Google Scholar] [Crossref]
17. S. Kumar and A. C¸cetinkaya. Coefficient inequalities for certain starlike and convex functions. Hacettepe Journal of Mathematics and Statistics, 51(1):156– 171, 2022. Zbl 1499.30108. [Google Scholar] [Crossref]
18. S. S. Kumar and G. Kamaljeet. A cardioid domain and starlike functions. Analysis and Mathematical Physics, 11(2):35, 2021. Zbl 1461.30042. [Google Scholar] [Crossref]
19. V. Kumar. Hadamard product of certain starlike functions. Journal of Mathematical Analysis and Applications, 110:425–428, 1985. Zbl 0585.30013. [Google Scholar] [Crossref]
20. V. Kumar. Quasi-hadamard product of certain univalent functions. Journal of Mathematical Analysis and Applications, 126:70–77, 1987. Zbl 0625.30014. [Google Scholar] [Crossref]
21. W. C. Ma and D. Minda. A unified treatment of some special classes of univalent functions. In Conference Proceedings, Lecture Notes in Analysis, volume 1, pages 157–169, 1994. Zbl 0823.30007. [Google Scholar] [Crossref]
22. O. Mostafa, M. K. Aouf, H. M. Zayed, and T. Bulboac˘a. Convolution conditions for subclasses of meromorphic functions of complex order associated with basic bessel functions. Journal of the Egyptian Mathematical Society, 25(3):286–290, 2017. Zbl 1376.30009. [Google Scholar] [Crossref]
23. S. Owa. On the classes of univalent functions with negative coefficients. Mathematica Japonica, 27:409–416, 1982. Zbl 0497.30015. [Google Scholar] [Crossref]
24. S. Owa. On the hadamard products of univalent functions. Tamkang Journal of Mathematics, 14:15–21, 1983. Zbl 0527.30001. [Google Scholar] [Crossref]
25. S. Ponnusamy. Convolution properties of some classes of meromorphic univalent functions. Proceedings of the Indian Academy of Sciences. Mathematical Sciences, 103(1):73–89, 1993. Zbl 0772.30017. [Google Scholar] [Crossref]
26. S. D. Purohit and R. K. Raina. Certain subclasses of analytic functions associated with fractional q-calculus operators. Mathematica Scandinavica, 109:55–70, 2011. Zbl 1229.33027. [Google Scholar] [Crossref]
27. V. Ravichandran, S. S. Kumar, and K. G. Subramanian. Convolution conditions for spirallikeness and convex spirallikeness of certain meromorphic p-valent functions. Journal of Inequalities in Pure and Applied Mathematics, 5(1):Article 7, 2004. Zbl 1062.30017. [Google Scholar] [Crossref]
28. T. Sekine. On quasi-hadamard products of p-valent functions with negative coefficients. In H. M. Srivastava and S. Owa, editors, Univalent Functions, Fractional Calculus, and Their Applications, pages 317–328. Ellis Horwood / John Wiley, Chichester, 1989. Zbl 0683.00012. [Google Scholar] [Crossref]
29. T. M. Seoudy and M. K. Aouf. Convolution properties for certain classes of analytic functions defined by q-derivative operator. Abstract and Applied Analysis, 2014:Article ID 846719 (7 pages), 2014. MR3272218; Zbl 07023188. [Google Scholar] [Crossref]
30. K. Sharma, N. K. Jain, and V. Ravichandran. Starlike functions associated with a cardioid. Africa Mathematica, 27:923–939, 2016. Zbl 1352.30015. [Google Scholar] [Crossref]
31. L. Shi, H. M. Srivastava, N. E. Cho, and M. Arif. Sharp coefficient bounds for a subclass of bounded turning functions with a cardioid domain. Axioms, 12(8):775, 2023. DOI: 10.3390/axioms12080775. [Google Scholar] [Crossref]
32. J. Soklo and J. Stankiewicz. Radius of convexity of some subclasses of strongly starlike functions. Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka, 147:101–105, 1996. Zbl 0880.30014. [Google Scholar] [Crossref]
33. Soni, P. P. Vyas, and S. Kant. Convolution properties for certain subclasses of meromorphic p-valent functions by means of cassinian ovals. Facta Universitatis. Series Mathematics and Informatics, 38(1):25–30, 2023. Zbl 07742875. [Google Scholar] [Crossref]
34. H. M. Srivastava. Operators of basic (or q-) calculus and fractional q-calculus and their applications in geometric function theory of complex analysis. Iranian Journal of Science and Technology, Transactions A: Science, 44:327–344, 2020. [Google Scholar] [Crossref]
35. H. M. Srivastava, M. Arif, and M. Raza. Convolution properties of meromorphically harmonic functions defined by a generalized convolution q-derivative operator. AIMS Mathematics, 6(6):5869–5885, 2021. DOI: 10.3934/math.2021347. [Google Scholar] [Crossref]
36. H. M. Srivastava, M. Tahir, B. Khan, M. Darus, N. Khan, and Q. Ahmad. Certain subclasses of meromorphically q-starlike functions associated with the q-derivative operators. Ukrainian Mathematical Journal, 73:1462–1477, 2022. Zbl 1492.30049; DOI: 10.1007/s11253-022-02005-5. [Google Scholar] [Crossref]
37. R. Srivastava and H. M. Zayed. Subclasses of analytic functions of complex order defined by q-derivative operator. Studia Universitatis Babes,-Bolyai Mathematica, 64(1):71–80, 2019. MR3928603; Zbl 1438.30099. [Google Scholar] [Crossref]
38. Wahid Ullah, Sarfraz Nawaz Malik, Daniel Breaz, and Luminita-Ioana Cotirla. On logarithmic coefficients for starlike functions related to the nephroid domain. AIMS Mathematics, 10(11):26905–26925, 2025. [Google Scholar] [Crossref]
39. P. P. Vyas. Convolution conditions for certain subclasses of meromorphic pvalent functions. Facta Universitatis, Series Mathematics and Informatics, 37(1):159–168, 2022. Zbl 1499.32008. [Google Scholar] [Crossref]
40. P. P. Vyas. Convolution conditions for certain subclasses of meromorphic p-valent functions. Facta Universitatis. Series Mathematics and Informatics, 37(1):159–168, 2022. Zbl 1499.32008. [Google Scholar] [Crossref]
41. L. A. Wani and A. Swaminathan. Starlike and convex functions associated with a nephroid domain. Bulletin of the Malaysian Mathematical Sciences Society, 44:79–104, 2021. Zbl 1461.30046. [Google Scholar] [Crossref]
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