About author: TANG Xiao-min(1976-), male, native of Tongxiang, Zhejiang, a lecturer of Huzhou Teacher's, Callege, M.S.D., engages in complex variables and operator theory.
Supported by:
Supported by the National Natural Science Foundation of China(10471039); Supported by the Natural Science Foundation of Zhejiang Province(Y606197); Supported by the Natural Science Foundation of Huzhou City(2005YZ02)