2ZHENG BaoDong 1,LIANG LiJie 1 & ZHANG ChunRui 2 1 Department of mathematics,Harbin Institute of Technology,Harbin 150001,China,2 Department of mathematics,Northeast Forestry University,Harbin 150040,China.Extended Jury criterion[J].Science China Mathematics,2010,53(4):1133-1150. 被引量:4