ADMISSIBILE ESTIMATES FOR QUADRATIC LOSS
平方损失下的可容许估计

This article synthesizes the results of Hoges and Lehmann~1],Girshick and Savage~2],Karlin~3],Cheng Ping~4,Ghosh and Meeden~5],and Katz~6]gives more general sufficientKatv~6],gives more general sufficientconditions for admissibility of estimation with quadratic loss,and lists the applications of themain theorem.For the truncation type family the admissble estimates of parametes in truncatedparameter space are gained.