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arXiv 1601.02577math.CO
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格3-多面体的格点数的Enumeration

Enumeration of lattice 3-polytopes by their number of lattice points

Mónica Blanco, Francisco Santos

摘要:

我们开发了一个完整的计算枚举的格子$3$ -宽度大于1的多面体的程序,任何给定数量的格点。我们还实现了一个算法来实现这一点,并枚举那些最多有11个格点的格点(有216,453个)。为了实现这一点,我们证明,如果$P$是一个网格3-多面体的宽度大于一个,至少有7个晶格点,然后它适合在三个类别之一,我们称之为装箱,穗和合并。盒多面体最多有11个格点;特别是它们是多格点的,我们用计算机帮助完全枚举它们。穗多面体是无限多,但承认一个相当精确的描述(和枚举)。合并的多面体被计算为两个宽度大于1且晶格点数量严格小于1的多面体的并集(合并)。

英文摘要:

We develop a procedure for the complete computational enumeration of lattice $3$-polytopes of width larger than one, up to any given number of lattice points. We also implement an algorithm for doing this and enumerate those with at most eleven lattice points (there are 216,453 of them). In order to achieve this we prove that if $P$ is a lattice 3-polytope of width larger than one and with at least seven lattice points then it fits in one of three categories that we call boxed, spiked and merged. Boxed polytopes have at most 11 lattice points; in particular they are finitely many, and we enumerate them completely with computer help. Spiked polytopes are infinitely many but admit a quite precise description (and enumeration). Merged polytopes are computed as a union (merging) of two polytopes of width larger than one and strictly smaller number of lattice points.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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