Sizes of flat maximal antichains of subsets
Sizes of flat maximal antichains of subsets
复制标题
子集的平坦最大反链的大小
DOI:
10.48550/arxiv.2302.07062
复制
发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Michael Schmitz
中科院分区:
文献类型:
--
作者:
Jerrold R. Griggs;T. Kalinowski;Uwe Leck;I. Roberts;Michael Schmitz
This is the second of two papers investigating for which positive integers $m$ there exists a maximal antichain of size $m$ in the Boolean lattice $B_n$ (the power set of $[n]:=\{1,2,\dots,n\}$, ordered by inclusion). In the first part, the sizes of maximal antichains have been characterized. Here we provide an alternative construction with the benefit of showing that almost all sizes of maximal antichains can be obtained using antichains containing only $l$-sets and $(l+1)$-sets for some $l$.