该文考虑广义Beltrami方程组Dtf(x)H(x)Df(x)=J(x,f)(2/n)G(x).(*)利用能量和变分方法,在矩阵H(x),G(x)∈S(n)满足一致椭圆型条件下,得到了(*)式所满足的齐次散度型椭圆方程DivA(x,Df(x))=0,并得到了(*)式的分量函数的弱单调性和Caccioppoli不等式.
This paper deals with the generalized Beltrami system Dtf(x)H(x)Df(x)=J(x,f)(2/n)G(x).(*) A homogeneous elliptic equation of divergence type DivA(x,Df(x))=0 is derived from (*) under the uniformly elliptic conditions on the matrices H(x),G(x)∈S(n) by using the energy and variational methods. The weak monotonicity properties for the component functions of (*) and a Caccioppoli inequality are also derived.