一类散度型椭圆方程很弱解梯度的零点
高红亚,张华,佟玉霞
Zeros for the Gradients of Very Weak Solutions of a Class of Elliptic Equation of Divergence Type
GAO Hong-ya,ZHANG Hua,TONG Yu-xia
河北大学学报(自然科学版) . 2005, (1): 9 -12 .  DOI: 10.3969/j.issn.1000-1565.2005.01.003