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- Title
Certain Properties of Harmonic Functions Defined by a Second-Order Differential Inequality.
- Authors
Breaz, Daniel; Durmuş, Abdullah; Yalçın, Sibel; Cotirla, Luminita-Ioana; Bayram, Hasan
- Abstract
The Theory of Complex Functions has been studied by many scientists and its application area has become a very wide subject. Harmonic functions play a crucial role in various fields of mathematics, physics, engineering, and other scientific disciplines. Of course, the main reason for maintaining this popularity is that it has an interdisciplinary field of application. This makes this subject important not only for those who work in pure mathematics, but also in fields with a deep-rooted history, such as engineering, physics, and software development. In this study, we will examine a subclass of Harmonic functions in the Theory of Geometric Functions. We will give some definitions necessary for this. Then, we will define a new subclass of complex-valued harmonic functions, and their coefficient relations, growth estimates, radius of univalency, radius of starlikeness and radius of convexity of this class are investigated. In addition, it is shown that this class is closed under convolution of its members.
- Subjects
HARMONIC functions; UNIVALENT functions; DIFFERENTIAL inequalities; GEOMETRIC function theory; COMPUTER software development
- Publication
Mathematics (2227-7390), 2023, Vol 11, Issue 19, p4039
- ISSN
2227-7390
- Publication type
Article
- DOI
10.3390/math11194039