研究由主子矩阵和谱数据构造Jacobi矩阵问题,推广到弹簧质点系统谱约束下的双倍维扩展问题和对称三对角二次束逆特征值问题.给出了问题的数值解法.
This paper considers the following problem: how to construct a Jacobi matrix from its spectrum and a submatrix. The numerical algorithms are given. Then we expand the result to the method of expanding a spring mass system to double dimension and the inverse problem of constructing a tridiagonal quadratic pencil.