%A 林珍连, 石擎天 %T PARAMETRIC REPRESENTATIONS OF QUASICONFORMAL MAPPINGS %0 Journal Article %D 2020 %J 数学物理学报(英文版) %R 10.1007/s10473-020-0616-5 %P 1874-1882 %V 40 %N 6 %U {http://121.43.60.238/sxwlxbB/CN/abstract/article_16292.shtml} %8 2020-12-25 %X In this article, we first give two simple examples to illustrate that two types of parametric representation of the family of $\Sigma_{K}^{0}$ have some gaps. Then we also find that the area derivative formula (1.6), which is used to estimate the area distortion of $\Sigma_{K}^{0}$, cannot be derived from [6], but that formula still holds for $\Sigma_{K}^{0}$ through our amendatory parametric representation for the one obtained by Eremenko and Hamilton.