singular kernel
8.Let T_Ω be the singular integral with homogeneous kernel, and Ω and T~(b,m)_Ω be the commutators generated by T_Ω and a BMO function b. The boundedness properties of T~(b,m)_Ω on a kind of atomic Hardy spaces and Herz-type Hardy spaces are established, under some assumptions such as the Dini-condition.
9.According to the idea of complex analysis in several variables,the Poincare′-Bertrand trans formation formula of the singular integral with exchange factor kernel on characteristic manifold in Clifford analysis was considered. Using this formula,the singular integral equation with exchange factor kernel on characteristic manifold was discussed. At last, the solvability of the equation under certain conditions were gotten.

