A Vertex Variant of the Kleitman-West Problem
A Vertex Variant of the Kleitman-West Problem
复制标题
克莱特曼-韦斯特问题的顶点变体
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
B. List
中科院分区:
文献类型:
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作者:
B. List
We study the problem of finding an m-element set A of vertices in the nth layer of the d-dimensional unit cube with the minimum number of vertices in the nth layer lying at distance 2 from A (i.e., in the frontier of A). Our main results are lower and upper bounds on the ratio of the size of the frontier to the size of the set and exact formulas for the size of the boundaries of ideals.