三阶椭圆型方程组的复形式与存在定理

Complex Forms and Existence Theorems for Elliptic Systems of Third Order Equations

在本文中，我们首先将三阶一致椭圆型组化为复形式。

In this paper, we first transform the elliptic systems of third order equations into the complex forms, and then prove existence theorem of solutions for linear and nonlinear elliptic complex equations of third order by using the Fredholm theorem and Schauder fixed-point theorem respectively.