论文标题
横齿孔
The crosscut poset
论文作者
论文摘要
我们介绍了一种新的组合不变式，我们称之为横切poset，它比横切综合体更细。我们展示了横切poset的许多应用，其中包括对Björner的横切定理的概括以及有关固定点属性和固定单纯属性的两个结果。
We introduce a new combinatorial invariant, which we call crosscut poset, that is finer than the crosscut complex. We exhibit many applications of the crosscut poset which include a generalization of Björner's crosscut theorem and two results concerning the fixed point property and the fixed simplex property.
