Certain Properties of Harmonic Functions Defined by a Second-Order Differential Inequality

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.

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The Theory of Complex Functions is a widely studied subject with various applications. Harmonic functions are crucial in mathematics, physics, engineering, and other fields. This study focuses on a subclass of Harmonic functions in the Theory of Geometric Functions, investigating their coefficient relations, growth estimates, and geometric properties.