Successive coefficients for spirallike and related functions

Vibhuti Arora, Saminathan Ponnusamy, Swadesh Kumar Sahoo

We consider the family of all analytic and univalent functions in the unit disk of the form $f(z)=z+a_2{z}^2+a_3{z}^3+\cdots$. Our objective in this paper is to estimate the difference…