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.
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。
It has proved the theory that fuzzy matrix A is a λ-cut invertible fuzzy matrix if and only if A is a orthogonal fuzzy matrix, and obtain a method of all λ-cut inverse fuzzy matrix to solute λ-cut invertible fuzzy matrix.
提出了λ截可逆模糊矩阵的概念,讨论了λ截可逆模糊矩阵的性质,证明了模糊矩阵A是λ截可逆模糊矩阵的充分必要条件为A是正交模糊矩阵,给出了求λ截可逆模糊矩阵A的全部λ截逆模糊矩阵的方法。
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