Title of Paper :Equivariant Phantom maps Author(s) : Jianzhong Pan AMS Classification numbers :55P91,55P60 Addresses of Authors: Institute of Math.,Academia Sinica ,Beijing 100080 ,China email:pjz@math03.math.ac.cn Text of Abstract (try for 20 lines or less) : A successful generalization of phantom map theory to the equivariant case for all compact Lie groups is obtained in this paper. One of the key observations is the discovery of the fact that homotopy fiber of equivariant completion splits as product of equivariant Eilenberg-Maclane spaces which seems impossible at first sight by the example of Triantafillou.