论文标题
如何检测和构建N-矩阵
How to Detect and Construct N-matrices
论文作者
论文摘要
n-矩阵是真正的$ n \ times n $矩阵，其主要未成年人都是负面的。我们提供（i）$ O（2^n）$测试，以检测给定矩阵是否为n-matrix，以及（ii）n-矩阵的表征，从而导致每个N- matrix的递归结构。
N-matrices are real $n\times n$ matrices all of whose principal minors are negative. We provide (i) an $O(2^n)$ test to detect whether or not a given matrix is an N-matrix, and (ii) a characterization of N-matrices, leading to the recursive construction of every N-matrix.
