The Ehrhart polynomial of a lattice polytope

The Ehrhart polynomial of a lattice polytope
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格子多面体的埃尔哈特多项式

DOI:
10.2307/2951842
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发表时间:
1997
影响因子:
4.9
通讯作者:
S. Robins
S. Robins
中科院分区:
数学1区
文献类型:
--
作者:
Ricardo Diaz;S. Robins

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R '中凸格多面体(顶点具有整数坐标的多面体)内部的格点计数问题已经从各种角度进行了研究。在这里,我们使用泊松求和公式和傅立叶分析中的相关技术,以获得一个公式的格点内的所有整数膨胀的格多面体。我们表明,相关的生成函数有一个明确的表示,在余切,这是高维推广的Dedekind和的总和。设En表示R '中的n维整数格,P是R'中的n维格多面体,P是顶点位于格上的纯n维紧致单纯复形.考虑一个整数值变量t的函数,它描述了位于扩张多面体tP内部的格点的数量:
The problem of counting the number of lattice points inside a convex lattice polytope in R' (a polytope whose vertices have integer coordinates) has been studied from a variety of perspectives. Here we use the Poisson summation formula and related techniques in Fourier analysis to obtain a formula for the number of lattice points inside all integral dilates of a lattice polytope. We show that an associated generating function has an explicit representation in terms of sums of cotangents, which are higher-dimensional generalizations of Dedekind sums. Let En denote the n-dimensional integer lattice in R', and let P be an n-dimensional lattice polytope in R', which is a compact simplicial complex of pure dimension n whose vertices lie on the lattice. Consider the function of an integer-valued variable t that describes the number of lattice points that lie inside the dilated polytope tP:
DOI: --
发表时间: 2022
期刊:
影响因子: --
作者:
Higashitani Akihiro;Tran Tan Nhat;Yoshinaga Masahiko;淺原雅浩;東田全央;Akihiro Higashitani
通讯作者: Akihiro Higashitani