Institution: | YU Xin~* LIU Kangsheng~** CHEN Pengnian~*** *Laboratory of Information and Optimization Technologies,Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,Zhejiang,China.**Department of Mathematics,Zhejiang University,Hangzhou 310027,China.***Division of Mathematics,China Institute of Metrology,Hangzhou 310034,China. |