Tropical schemes, tropical cycles, and valuated matroids

Tropical schemes, tropical cycles, and valuated matroids
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热带方案、热带循环和评估拟阵

DOI:
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发表时间:
2014
期刊:
Journal of the European Mathematical Society (Print)
影响因子:
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通讯作者:
F. Rincón
F. Rincón
中科院分区:
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文献类型:
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作者:
D. Maclagan;F. Rincón

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我们表明,热带品种的权重可以从Giansiracusas在arXiv:1308.0042中提出的热带方案结构中恢复,因此从热带方案到底层热带循环存在定义良好的希尔伯特-周态射。对于由齐次理想I给出的射影空间的子方案,我们证明了这个热带方案结构包含与向量空间I_d的赋值拟阵集相同的信息,其中d \geq 0。我们还给出了一个组合准则,以确定是否一个给定的关系是在同余定义的热带计划结构。
We show that the weights on a tropical variety can be recovered from the tropical scheme structure proposed by the Giansiracusas in arXiv:1308.0042, so there is a well-defined Hilbert-Chow morphism from a tropical scheme to the underlying tropical cycle. For a subscheme of projective space given by a homogeneous ideal I we show that this tropical scheme structure contains the same information as the set of valuated matroids of the vector spaces I_d for d \geq 0. We also give a combinatorial criterion to determine whether a given relation is in the congruence defining the tropical scheme structure.
DOI: 10.1215/00127094-3645544
发表时间: 2013-07
影响因子: 2.5
作者:
Jeffrey Giansiracusa;Noah Giansiracusa
通讯作者: Jeffrey Giansiracusa;Noah Giansiracusa