| 拟阵的差导算子与导算子的完备格同构 |
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| 引用本文： | 程茜.拟阵的差导算子与导算子的完备格同构[J].榆林高等专科学校学报,2010,20(2):12-14. |
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| 作者姓名： | 程茜 |
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| 作者单位： | 西安欧亚学院,基础部数学教研室,陕西,西安,710065 |
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| 摘 要： | 定义了拟阵的差导算子,导算子,证明了对每个给定的有限集X,可以给DD（X）（即X上拟阵差导算子的全体）上赋予适当的序≤使得（DD（X）,≤）与（D（X）,≤）（即X上拟阵导算子的全体）之间是完备格同构的。
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| 关 键 词： | 拟阵 拟阵差导算子 拟阵导算子 完备格同构 |
The Relations Among Matroids Difference Operator and Matroids Operator |
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| CHENG Qian.The Relations Among Matroids Difference Operator and Matroids Operator[J].Journal of Yulin College,2010,20(2):12-14. |
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| Authors: | CHENG Qian |
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| Institution: | CHENG Qian (Department of Basic College Mathematics Teaching,Xi＇an Eurasia University,Xi＇an 710065,Shaanxi) |
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| Abstract: | The concepts of difference derived operator are introduced in this paper.It is proved that,for a given finite set,appropriate order relations can be defined on DD（X）（the set of all matroids difference derived operators on）,D（X）（the set of all matroids derived operators on）,so that both（DD（X） and（DX） are complete lattices. |
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| Keywords: | matroids matroids difference derived operators matroids derived operators complete lattices isomorphic |
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