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arXiv 2011.03067math.AC
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混合小度中$f$ -理想和$f$ -理想的稠密性

Density of $f$-ideals and $f$-ideals in mixed small degrees

Huy TÀi HÀ, Graham Keiper, Hasan Mahmood, Jonathan L. O'Rourke

摘要:

如果一个无平方根的单项理想的Stanley-Reisner复形和小平面单纯复形具有相同的$f$ -向量,则称之为$f$ -理想.我们证明了当变量个数趋于无穷大时,在固定度上生成的$f$ -理想具有渐近密度零。我们还提供了新的算法来构建小度生成的$f$ -理想。

英文摘要:

A squarefree monomial ideal is called an $f$-ideal if its Stanley-Reisner and facet simplicial complexes have the same $f$-vector. We show that $f$-ideals generated in a fixed degree have asymptotic density zero when the number of variables goes to infinity. We also provide novel algorithms to construct $f$-ideals generated in small degrees.

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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