Some inequalities for a certain subclass of Bazilevič functions involving multiplicative calculus

Authors

  • Kadhavoor R. Karthikeyan Department of Applied Mathematics and Science, National University of Science and Technology, Muscat, Oman
  • Sakkarai Lakshmi Mathematics Section, College of Computing and Information Science, University of Technology and Applied Sciences – Al Mussanah, Muladdah, Oman
  • Seetharam Varadharajan Mathematics Section, College of Computing and Information Science, University of Technology and Applied Sciences – Al Mussanah, Muladdah, Oman

DOI:

https://doi.org/10.3842/umzh.v77i2.8288

Keywords:

univalent function, multiplicative calculus, starlike, Bazilevic, subordination

Abstract

UDC 517.5

We define a new class of functions expressed as a convex combination of differential characterizations affected by the multiplicative derivative. Multiplicative derivative is defined in a domain, which excludes zero. Hence, in this case, the defined subclass does not involve replacing the ordinary derivative with a multiplicative derivative. However, we have used the motivation behind the purpose of this restrictive calculus given by the circumstances that we have a more versatile calculus of Newton and Euler. Estimates involving the initial coefficients of the functions, which have Maclaurin series and belong to the given function class are our main results. Some examples, along with the graphs, are used to establish the inclusion and the closure properties. Moreover, we obtain the logarithmic and inverse coefficients for the analyzed function class.

References

The full version of this paper will be published in Ukrainian Mathematical Journal, Vol. 77, No. 2, 2025.

Published

28.03.2025

Issue

Section

Research articles

How to Cite

Karthikeyan, Kadhavoor R., et al. “Some Inequalities for a Certain Subclass of Bazilevič Functions Involving Multiplicative Calculus”. Ukrains’kyi Matematychnyi Zhurnal, vol. 77, no. 2, Mar. 2025, pp. 157–158, https://doi.org/10.3842/umzh.v77i2.8288.