Full-Rank Valuations and Toric Initial Ideals
Full-Rank Valuations and Toric Initial Ideals
复制标题
全等级估值和 Toric 初始理想
DOI:
10.1093/imrn/rnaa071
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发表时间:
2019
影响因子:
1
通讯作者:
L. Bossinger
中科院分区:
文献类型:
--
作者:
L. Bossinger
Let $V(I)$ be a polarized projective variety or a subvariety of a product of projective spaces, and let $A$ be its (multi-)homogeneous coordinate ring. To a full-rank valuation ${\mathfrak{v}}$ on $A$ we associate a weight vector $w_{\mathfrak{v}}$. Our main result is that the value semi-group of ${\mathfrak{v}}$ is generated by the images of the generators of $A$ if and only if the initial ideal of $I$ with respect to $w_{\mathfrak{v}}$ is prime. As application, we prove a conjecture by [ 7] connecting the Minkowski property of string polytopes to the tropical flag variety. For Rietsch-Williams’ valuation for Grassmannians, we identify a class of plabic graphs with non-integral associated Newton–Okounkov polytope (for ${\operatorname *{Gr}}_k(\mathbb C^n)$ with $n\ge 6$ and $k\ge 3$).
DOI:
10.48550/arxiv.1307.1085
发表时间:
2013
期刊:
arXiv e-prints
影响因子:
--
作者:
Marsh Bethany
通讯作者:
Marsh Bethany
影响因子:
0.5
作者:
Bossinger L
通讯作者:
Bossinger L