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1·In Section 4, we study the nullity functions of poset matroids.

在第4节研究了偏序集拟阵的零度函数。

2·A poset is called a symmetric chain decomposition if the poset can be expressed as a disjoint union of symmetric chains.

如果一个偏序集可以分解成不相交的对称链之并，则称此偏序集具有对称链分解。

3·In Section 5, we use the corank function of poset matroids to investigate the relationship between a poset matroid and its dual.

在第5节，我们用偏序集拟阵的余秩函数来研究偏序集拟阵与其对偶之间的关系。

4·The totally-ordered relations between subcomponents are retrieved by defining the corresponding rules between decomposed relations and a poset of subcomponents.

最后通过定义一组拆分关系与子部件偏序关系之间的对应规则来得到子部件的全序关系。