The subspace iteration method is used in several general purpose structural analysis programs for the solution of the eigenpairs.
求解大型结构矩阵低阶特征值和特征向量，子空间迭代法是有效方法之一，而且其应用也比较普遍。
This paper considers the problem of constructing a special kind of matrices from defective eigenpairs and the leading principal submatrix.
本文主要讨论了由给定的主子阵和两个缺损特征对构造一类特殊矩阵的问题。
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