中文摘要：

研究A-调和方程divA（x，u）=B（x，u，u）的一些正则性，包括解的Caccioppoli估计、弱逆Htilder不等式。作为一个应用，还研究了Ar^λ3（λ1，λ2，Ω）一权的弱逆Holder不等式。

英文摘要：

Consider regularities of the A-harmonic equation - divA （x, u） = B （ x, u, u）, such as the Caccioppoli estimates and strong reverse Holder inequalities of their solutions. As an application, the Ar^λ3（λ1,λ2,Ω）-weighted weak reverse inequality is also considered.