Department of Mathematics;
Sichuan University;
Chengdu 610064;
P R China;
Department of Mathematics;
Yibin Teacher's College;
Yibin 644007;
P R China;
asymptotically; nonexpansive; mapping; fixed; point; modified; Ishikawa; iterative; sequence; with; errors; modified; Mann; iterative; sequence; with; errors;