The asymptotical case of certain quasiconformal extension results for holomorphic mappings in $\mathbb{C}^n$

Abstract

Let $f(z,t)$ be a non-normalized subordination chain and assume that $f(\cdot,t)$ is $K$-quasiregular on $B^n$ for $t\in [0,\alpha]$. In this paper we obtain a sufficient condition for $f(\cdot,0)$ to be extended to a quasiconformal homeomorphism of $\overline{\mathbb{R}}^{2n}$ onto $\overline{\mathbb{R}}^{2n}$. Finally we obtain certain applications of this result. One of these applications can be considered the asymptotical case of the $n$-dimensional version of the well known quasiconformal extension result due to Ahlfors and Becker.