ARROW不可能性定理
Arrow’s impossibility theorem
Bush连续不可微函数
Bush continuous and non-differentiable function
James-Stein估计量不可容性
inadmissibility of James-Stein estimator
L不可分解矩阵
L-indecomposable matrices
Pitman估计量不可容性
inadmissibility of Pitman estimator
ZG乐观不可否认协议
ZG optimistic non-repudiation protocol