In this paper the authors discuss the feasibility of making a down triangular martrix with the subdigonal elements as 1 that its singular values are given in advance,and then give its algorithm and an example.
讨论了构造一个次对角元为1的单位下三角阵(使其奇异值为预先给定的满足一定条件)的可行性,并给出了这一算法和一个实例。