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Yulan Jiao 《分析论及其应用》2007,23(4):307-314
A weak type endpoint estimate for the maximal multilinear singular integral operator T*Af(x)=supε>0|(f)(x-y)>ε (Ω(x-y)/(|x-y|(n 1)))(A(x)-A(y)-▽A(y)(x-y))f(y)dy| is established, where Ω is homogeneous of degree zero, integrable on the unit sphere and has vanishing moment of order one, and A has derivatives of order one in BMO(Rn). A regularity condition on Ω which implies an LlogL type estimate of T*A is given. 相似文献
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