q-analogues of Ehrhart polynomials
q-analogues of Ehrhart polynomials
复制标题
Ehrhart 多项式的 q 类似物
DOI:
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发表时间:
2013
影响因子:
0.7
通讯作者:
F. Chapoton
中科院分区:
文献类型:
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作者:
F. Chapoton
Abstract We consider weighted sums over points of lattice polytopes, where the weight of a point v is the monomial q λ(v) for some linear form λ. We propose a q-analogue of the classical theory of Ehrhart series and Ehrhart polynomials, including Ehrhart reciprocity and involving evaluation at the q-integers. The main novelty is the proposal to consider q-Ehrhart polynomials. This general theory is then applied to the special case of order polytopes associated with partially ordered sets. Some more specific properties are described in the case of empty polytopes.