English

Geometric Properties of Partial Sums of Univalent Functions

Complex Variables 2012-07-19 v1

Abstract

The nnth partial sum of an analytic function f(z)=z+k=2akzkf(z)=z+\sum_{k=2}^\infty a_k z^k is the polynomial fn(z):=z+k=2nakzkf_n(z):=z+\sum_{k=2}^n a_k z^k. A survey of the univalence and other geometric properties of the nnth partial sum of univalent functions as well as other related functions including those of starlike, convex and close-to-convex functions are presented.

Keywords

Cite

@article{arxiv.1207.4302,
  title  = {Geometric Properties of Partial Sums of Univalent Functions},
  author = {V. Ravichandran},
  journal= {arXiv preprint arXiv:1207.4302},
  year   = {2012}
}