arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1808.09986math.RTmath.CO
收藏

ABHY 结合多面体与有限型簇代数的 $F$-多项式的牛顿多面体

ABHY Associahedra and Newton polytopes of $F$-polynomials for finite type cluster algebras

Véronique Bazier-Matte, Nathan Chapelier-Laget, Guillaume Douville, Kaveh Mousavand, Hugh Thomas, Emine Yıldırım

AI总结:

本文将ABHY结合多面体新构造推广至任意单标Dynkin类型的广义结合多面体,并发现该构造同样可生成对应簇代数所有 $F$-多项式的牛顿多面体,同时证明了g-向量扇相关环簇的nef锥具有单纯性。

摘要:

Arkani-Hamed、Bai、He 和 Yan 近期在散射振幅物理学的背景下给出了一种结合多面体的新构造。我们证明,他们的构造(在适当理解下)可用于构造任何单标 Dynkin 类型的广义结合多面体。出乎意料的是,我们还证明,同样的构造也能生成相应簇代数所有 $F$-多项式的牛顿多面体。此外,我们证明与 g-向量扇相关的环簇具有其 nef 锥为单纯锥的性质。

英文摘要:

A new construction of the associahedron was recently given by Arkani-Hamed, Bai, He, and Yan in connection with the physics of scattering amplitudes. We show that their construction (suitably understood) can be applied to construct generalized associahedra of any simply-laced Dynkin type. Unexpectedly, we also show that this same construction produces Newton polytopes for all the $F$-polynomials of the corresponding cluster algebras. In addition, we show that the toric variety associated to the g-vector fan has the property that its nef cone is simplicial.

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。

↑