Inequalities of the Turán-Type for the Le Roy Type's Mittag–Leffler Function

Mert Coşkun O., Çetinkaya A., Altınkaya Ş.

Mathematical Methods in the Applied Sciences, vol.49, no.5, pp.3699-3707, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 5
  • Publication Date: 2026
  • Doi Number: 10.1002/mma.70313
  • Journal Name: Mathematical Methods in the Applied Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, MathSciNet, zbMATH
  • Page Numbers: pp.3699-3707
  • Keywords: Log-convex function, Mittag–Leffler function, Turán-type inequalities
  • Istanbul Kültür University Affiliated: Yes

Abstract

This paper presents the necessary and sufficient conditions for monotonicity of the Mittag–Leffler function of the Le Roy type (abbr. MLR-functions), taking into account its special place in the theory of analytic functions. Mehrez and Sitnik studied the monotonicity of the ratio of sections on the series of Mittag–Leffler function (MLF) and developed some Turán-type inequalities. These inequalities have a wide range of applications in understanding the analytical properties of functions. The proposed work is a study for MLR-functions. The primary objective of this study is the development of the Turán-type inequalities and subsequent validation of these inequalities on specific intervals. In addition, the log-convex property of this function is analyzed, and the theoretical significance of this property is elaborated.