arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1708.07397math.SPmath.CO
收藏

一类非负矩阵的可实现列表

Realizable Lists on a Class of Nonnegative Matrices

Cristina B. Manzaneda, Enide Andrade, María Robbiano

摘要:

具有$n\geq 2$的n阶方阵称为置换矩阵,当它的所有行(直到第一行)恰好是它的第一行的置换。本文回顾了分块为$2$ × $2$对称块矩阵的谱结果,给出了给定复列表为非负置换矩阵特征值列表的充分条件。特别地,我们研究了NIEP和PNIEP时,一些复杂的元素到考虑的名单没有零虚部。得到了非负置换矩阵的可实现域。

英文摘要:

A square matrix of order n with $n\geq 2$ is called permutative matrix when all its rows (up to the frst one) are permutations of precisely its frst row. In this paper recalling spectral results for partitioned into $2$-by-$2$ symmetric blocks matrices sufcient conditions on a given complex list to be the list of the eigenvalues of a nonnegative permutative matrix are given. In particular, we study NIEP and PNIEP when some complex elements into the considered lists have no zero imaginary part. Realizability regions for nonnegative permutative matrices are obtained.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑