Bounds of Coefficient Functional of Certain Subclasses of Analytic Functions Associated with Cardioid Domain

In the present paper with the aid of subordination, the authors introduce a new subclass of univalent functions namely; starlike functions with respect to symmetric points linked with cardioid domain defined by $S_{s,e}^{**} := \left\{ f \in \mathcal{S}: \frac{2zf^{\prime}(z)}{f(z)-f(-z)} \prec 1+ze^z=:p(z)\right\}$, where the function $p(z)$ maps unit disk $\mathbb{D}:=\{z \in \mathbb{C}: |z|