Projective hypersurfaces in tropical scheme theory I: the Macaulay ideal
Projective hypersurfaces in tropical scheme theory I: the Macaulay ideal
复制标题
热带方案理论中的射影超曲面 I:麦考利理想
DOI:
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发表时间:
2024
期刊:
影响因子:
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通讯作者:
Joshua Mundinger
中科院分区:
文献类型:
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作者:
Alex Fink;Jeffrey Giansiracusa;Noah Giansiracusa;Joshua Mundinger
A"tropical ideal"is an ideal in the idempotent semiring of tropical polynomials that is also, degree by degree, a tropical linear space. We introduce a construction based on transversal matroids that canonically extends any principal ideal to a tropical ideal. We call this the Macaulay tropical ideal. It has a universal property: any other extension of the given principal ideal to a tropical ideal with the expected Hilbert function is a weak image of the Macaulay tropical ideal. For each $ngeq 2$ and $dgeq 1$ our construction yields a non-realizable degree $d$ hypersurface scheme in $mathbb{P}^n$. Maclagan-Rinc'on produced a non-realizable line in $mathbb{P}^n$ for each $n$, and for $(d,n)=(1,2)$ the two constructions agree. An appendix by Mundinger compares the Macaulay construction with another method for canonically extending ideals to tropical ideals.
影响因子:
2.5
作者:
Jeffrey Giansiracusa;Noah Giansiracusa
通讯作者:
Jeffrey Giansiracusa;Noah Giansiracusa
影响因子:
0.8
作者:
Anderson N
通讯作者:
Anderson N
影响因子:
1.7
作者:
Maclagan D
通讯作者:
Maclagan D