摘要： $\bf命题：$设$g\left( \lambda \right)$为任意多项式，方阵$A$的最小多项式为$m\left( \lambda \right)$，则$g(A)$可逆的充要条件是$\left( {g\left( \lambda \right),m\left( \lambda \right)... 阅读全文