本文致力于研究乘积空间上沿有限型的奇异积分算子,通过Fourier变换及外插方法的讨论,证明了带径向球面粗糙核的奇异积分算子的Lp(Rn×Rm)有界性.
We consider the singular integrals associated with functions of finite type on product domains. By the delicate Fourier transform estimates and the extrapolation arguments, we obtain the Lp(Rn×Rm) boundedness for such operators with rough kernels both in the radial direction and on the spherical surface.