铺砌拟阵的h-向量的结构
组合数学
2010-08-17 v2
摘要
我们给出了两个证明,表明任何铺砌拟阵的-向量都是纯O-序列,从而肯定地回答了R. Stanley针对这类特殊拟阵提出的一个猜想。我们还研究了在给定秩和元素个数的情况下,为铺砌拟阵的基的数量获得良好下界的问题。
引用
@article{arxiv.1008.2031,
title = {On the structure of the h-vector of a paving matroid},
author = {Criel Merino and Steven D. Noble and Marcelino Ramírez-Ibañez and Rafael Villarroel},
journal= {arXiv preprint arXiv:1008.2031},
year = {2010}
}
备注
We've corrected typos and small mistakes in the previous version. We've also tidied up a few proofs and the references