中文

LF-覆盖与 K"{o}nig 型二项边理想

交换代数 2024-12-16 v4

摘要

我们给出了其二项边理想为 K"{o}nig 型的连通图的组合刻画,该刻画独立于 LaClair 在 arXiv:2304.13299 中给出的类似刻画而发展出来,并展示了一些满足我们判据的图类。对于任意具有 nn 个顶点的连通哈密顿图 GG,我们将 HJ(G)n1(R)H_{J(G)}^{n-1}(R) 作为 FF-有限 FF-模的一个显式根计算出来。

关键词

引用

@article{arxiv.2310.14410,
  title  = {LF-Covers and Binomial Edge Ideals of K\"{o}nig Type},
  author = {David Williams},
  journal= {arXiv preprint arXiv:2310.14410},
  year   = {2024}
}

备注

21 pages, v4 includes more examples of LF-covers and strengthens the uniquness result of the main theorem; v3 substantially reorganises v2, several proofs have been simplified or rewritten for clarity, and small errors have been corrected (whilst the numbering has changed, no new results are introduced)