| 有向联系系统的若干性质 |
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| 引用本文： | 程仕军.有向联系系统的若干性质[J].贵州大学学报(自然科学版),1988(4). |
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| 作者姓名： | 程仕军 |
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| 作者单位： | 贵州大学数学系 贵阳 |
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| 摘 要： | 本文讨论了有向联系系统与拟阵以及有向拟阵(ditroid)之间的关系,将A.Schrijver关于拟阵与联系系统的两个重要结果推广到有向情形。给出了判别有向联系系统的两个充要条件。
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| 关 键 词： | 拟阵 有向拟阵 联系系统 有向联系系统 |
Some Properties of Directed Linking Systems |
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| Cheng Shijun.Some Properties of Directed Linking Systems[J].Journal of Guizhou University(Natural Science),1988(4). |
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| Authors: | Cheng Shijun |
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| Institution: | Cheng Shijun Department of Mathematics,Guizhou University,Guiyang |
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| Abstract: | The relationships beteween directed linking systems and matroids and ditroids are investigated. Two important results about matroids and lin- king systems of A. Schriiver are generalized to directed situation. Fur- thermore, two necessary and sufficient conditions for directed linking systems are presented. |
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| Keywords: | matroids difroids linking systems directed linking systems |
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