运用矩阵理论的圆盘定理，讨论了区间矩阵特征值的包含区域，得出了拟圆盘定理并讨论了稳定性。
By using Gerschgorin Theorem, the inclusion regions of an interval matrix and their applications are discussed in this paper.
针对约束矩阵具有与其所对应的零陷个数相同数量的大特征值的性质，应用盖氏圆盘定理比较精确地估计一个零陷情况下约束矩阵特征值的界。
The character of the eigenvalues of the constraint matrix was aimed, and the character is that the matrix has the same number of larger eigenvalues as number of the nulls that the matrix denoted.
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