Pre-Schwarzian norm estimate for certain Ma-Minda Class of functions

Md Firoz Ali, Md Nurezzaman, Sanjit Pal

Let ${\mathcal{S}}^{\ast }(\phi )$ be the class of all analytic functions $f$ in the unit disk $\mathbb{D}=\{z\in \mathbb{C}:|z|<1\}$, normalized by $f(0)=f^{\prime }(0)-1=0$ that satisfy the subordinat…