English

On the comparison of the Fridman invariant and the squeezing function

Complex Variables 2020-11-26 v1

Abstract

Let DD be a bounded domain in Cn\mathbb{C}^n, n1n\ge 1. In this paper, we study two biholomorphic invariants on DD, the Fridman invariant eD(z)e_D(z) and the squeezing function sD(z)s_D(z). More specifically, we study the following two questions about the \textit{quotient invariant} mD(z)=sD(z)/eD(z)m_D(z)=s_D(z)/e_D(z): 1) If mD(z0)=1m_D(z_0)=1 for some z0Dz_0\in D, is DD biholomorphic to the unit ball? 2) Is mD(z)m_D(z) constantly equal to 1? We answer both questions negatively.

Cite

@article{arxiv.2011.12464,
  title  = {On the comparison of the Fridman invariant and the squeezing function},
  author = {Feng Rong and Shichao Yang},
  journal= {arXiv preprint arXiv:2011.12464},
  year   = {2020}
}

Comments

6 pages, to appear in Complex Variables and Elliptic Equations