Ray可解方程组的有向图

On the Digraphs of Square Ray Solvable Linear Systems

在给出了系数矩阵为方阵,复线性方程组为ray可解以及非负ray可解的图论特征刻画的基础上,进一步讨论了具有这些特征刻画性质的带ray有向图及其基础有向图,得到了W+-ray可解、W-ray可解带ray有向图及其基础有向图的特征刻画.

Based on the study of the graph theoretical characterizations of the square ray solvable and nonnegative ray solvable complex linear systems, an analysis is made in this paper of these rayed digraphs and their underlying digraphs, and then some characterizations for W^＋ - ray solvable and W - ray solvable digraphs are obtained.