设u∈W1p,loc(Ω)是A-调和函数.如果1＜s＜p＜∞,测度μ(z)定义为dμ=w(z)dx,那么存在常数β＞1,使得w∈A1r∩ As/p,sβ/(β-1)≤k＜p时,有(1/|B|∫B |φ▽u|swdx)1/s≤c(1/|B|∫B|u▽φ| pwdx)1/p.对所有的球或立方体B Rn和所有的φ∈C∞0(Ω)都成立.这里C是一个不依赖于u和▽u的常数.
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