| Ray可解方程组的有向图 |
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| 引用本文： | 李琳.Ray可解方程组的有向图[J].同济大学学报(自然科学版),2006,34(7):973-977. |
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| 作者姓名： | 李琳 |
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| 作者单位： | 同济大学,应用数学系,上海,200092 |
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| 摘 要： | 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.
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| 关 键 词： | 矩阵 符号 复模式矩阵 可解方程组 有向图 |
| 文章编号： | 0253-374X（2006）07-0973-05 |
| 收稿时间： | 12 21 2004 12:00AM |
| 修稿时间： | 2004-12-21 |
On the Digraphs of Square Ray Solvable Linear Systems |
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| LI Lin.On the Digraphs of Square Ray Solvable Linear Systems[J].Journal of Tongji University(Natural Science),2006,34(7):973-977. |
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| Authors: | LI Lin |
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| Institution: | Department of Applied Mathematics, Tongji University, Shanghai 200092 ,China |
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| Abstract: | 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. |
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| Keywords: | matrix sign ray matrix ray solvable complex linear system graph |
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