摘要
吴启光（１９９１）在一般的Ｇａｕｓｓ－Ｍａｒｋｏｆｆ模型下，给出了回归系数的线性估计在一切估计类中可容许的充要条件，本文对此结果提供了一种新的证明方法。
Under the general Gauss-Markoff linear model,Wu Qiguang(1991)gave the necessary andsufflcient condifions for a linear estimator of regression coefrlcients to be admissible among the class ofallestimators;In this paper l We provide a new proof method for this result.
