利用极大算子的sharp极大函数的点态估计方法,建立了具有非光滑核的多线性奇异积分极大算子的Cotlar型不等式,应用Cotlar不等式证明了极大算子是Lr(Rn)到Lp0(Rn)上的有界算子,推广了一些已知结果.
Using the pointwise estimates of sharp maximal function for the maximal singular integrals, the cotlar inequality for the maximal multilinear singular integral operator with non-smooth kernels is established and it is proved that the maximal operator is bounded from Lr(Rn) into LP0(Rn). Some known results are extended.