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arXiv 1911.04463math.AG
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热带临界点与镜像对称

The tropical critical point and mirror symmetry

Jamie Judd, Konstanze Rietsch

AI总结:

该研究证明系数在广义Puiseux级数域正部的完全Laurent多项式有唯一正临界点,得到关联的热带临界点并给出递归构造,证明其与突变相容,可应用于簇簇与环面几何。

摘要:

称一个Laurent多项式$W$是“完全的”,若其Newton多胞体是满维的且内部包含零点。我们证明:若$W$是任意系数取自广义Puiseux级数域$K$的正部的完全Laurent多项式,则$W$存在唯一的正临界点$p_{crit}$。此处,若一个广义Puiseux级数的首项系数属于$\r_{>0}$,则称其为“正的”。利用$K$上的赋值,我们得到一个$\r^r$中典范关联的“热带临界点”$d_{crit}$,并给出其有限递归构造。我们证明该结果与一般形式的mutation(突变)相容,因此可应用于cluster varieties(簇簇)的设定。我们还给出了其在环面几何中的应用,包括通过[FOOO]的理论,为环面辛流形构造典范的不可位移Lagrangian环面。

英文摘要:

Call a Laurent polynomial $W$ `complete' if its Newton polytope is full-dimensional with zero in its interior. We show that if $W$ is any complete Laurent polynomial with coefficients in the positive part of the field $K$ of generalised Puiseux series, then $W$ has a unique positive critical point $p_{crit}$. Here a generalised Puiseux series is called `positive' if the coefficient of its leading term is in $\mathbb R_{>0}$. Using the valuation on $K$ we obtain a canonically associated `tropical critical point' $d_{crit}$ in $\mathbb R^{r}$ for which we give a finite recursive construction. We show that this result is compatible with a general form of mutation, so that it can be applied in a cluster varieties setting. We also give applications to toric geometry including, via the theory of [FOOO], to the construction of canonical non-displaceable Lagrangian tori for toric symplectic manifolds.

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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