考虑一类具有可测系数的散度型椭圆方程divG(x)u(x)=0.利用Hodge分解证明了其很弱解的梯度满足弱逆H(¨o)lder不等式,并得到了在其可积指数充分接近于2时,其很弱解梯度的几乎所有零点是无限阶的.
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