Optimal partial regularity of very weak solutions to nonhomogeneous A-harmonic systems.
We study partial regularity of very weak solutions to some nonhomogeneous A-harmonic systems. To obtain the reverse Hölder inequality of the gradient of a very weak solution, we construct a suitable test function by Hodge decomposition. With the aid of Gehring's lemma, we prove that these very weak solutions are weak solutions. Further, we show that these solutions are in fact optimal Hölder continuity based on A-harmonic approximation technique.
School of Mathematics and Statistics, Minnan Normal University, Fujian, Zhangzhou 363000 China.
Qing
Q
Zhao
School of Mathematics and Statistics, Minnan Normal University, Fujian, Zhangzhou 363000 China.
Shuhong
S
Chen
A-harmonic approximation technique; Hodge decomposition; nonhomogeneous A-harmonic systems; optimal partial regularity; very weak solution