4JIN MENGWEI, YING JIANGANG Department of Mathematics, Zhejiang University, Hongzhou 310027, China. Email: .jmw@math.zju.edu.cn Department of Mathematics, Zhejiang University, Hongzhou 310027, China. Email: jying@math.zju.edu.cn.ADDITIVE FUNCTIONALS AND PERTURBATION OF SEMIGROUP[J].Chinese Annals of Mathematics,Series B,2001,22(4):503-512. 被引量:1