Neighborly polytopes
Neighborly polytopes
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邻里多面体
DOI:
10.1007/bf02761235
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发表时间:
1982
影响因子:
1
通讯作者:
Ido Shemer
中科院分区:
文献类型:
--
作者:
Ido Shemer
A 2m-polytopeQ isneighborly if eachm vertices ofQ determine a face. It is shown that the combinatorial structure of a neighborly 2m-polytope determines the combinatorial structure of every subpolytope. We develop a construction of “sewing a vertex onto a polytope”, which, when applied to a neighborly 2m-polytope, yields a neighborly 2m-polytope with one more, vertex. Using this construction, we show that the numberg(2m+β,2m) of combinatorial types of neighborly 2m-polytopes with 2m+β vertices grows superexponentially as β→∞ (m≧2 fixed) and asm→∞ (β≧4 fixed).