均值矩阵的线性无偏估计在一切估计类中的可容许性

ADMISSIBILITY OF LUE OF MEAN MATRIX IN THE CLASS OF ALL ESTIMATORS

对于矩阵正态模型Ｙｎｘｍ～Ｎ其中０和Ｖ≥０已知，本文征明了，在６种不同的可容许性定义下，Ｓ１ＹＳ２在一切估计类中是Ｓ１Ｓ２的可容许估计．对模型Ｙ～Ｎ（Ｘ１Ｘ２Ｖ）也给出了一个初步结果．

Given the matrix normal model where ∑>0 and V>0 are known, it is showed that S1YS2 is admissible for S1 S2 in the class of all estimators under each of six definitions for admissibility. Also given is a result for the model.