Higher secondary polytopes and regular plabic graphs
Higher secondary polytopes and regular plabic graphs
复制标题
高级二级多面体和正则平面图
DOI:
10.1016/j.aim.2022.108549
复制
发表时间:
2022
影响因子:
1.7
通讯作者:
Williams, Lauren
中科院分区:
文献类型:
--
作者:
Galashin, Pavel;Postnikov, Alexander;Williams, Lauren
Given a configuration A of n points in R d− 1, we introduce the higher secondary polytopes Image 1, which have the property that Image 2 agrees with the secondary polytope of Gelfand–Kapranov–Zelevinsky, while the Minkowski sum of these polytopes agrees with Billera–Sturmfels' fiber zonotope associated with (a lift of) A. In a special case when d= 3, we refer to our polytopes as higher associahedra. They turn out to be related to the theory of total positivity, specifically, to certain combinatorial objects called plabic graphs, introduced by the second author in his study of the totally positive Grassmannian. We define a subclass of regular plabic graphs and show that they correspond to the vertices of the higher associahedron Image 3, while square moves connecting them correspond to the edges of Image 3. Finally we connect our polytopes to soliton graphs, the contour plots of soliton solutions to the KP equation, which were recently studied by Kodama and the third author. In particular, we confirm their conjecture that when the higher times evolve, soliton graphs change according to the moves for plabic graphs.
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DOI:
10.24033/bsmf.1446
发表时间:
1954
期刊:
Bulletin de la Société Mathématique de France
影响因子:
--
作者:
D. Tamari
通讯作者:
D. Tamari
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
L. Billera;B. Sturmfels
通讯作者:
B. Sturmfels
DOI:
10.1142/9789813272880_0177
发表时间:
2018
期刊:
Proceedings of the International Congress of Mathematicians (ICM 2018)
影响因子:
--
作者:
A. Postnikov
通讯作者:
A. Postnikov
影响因子:
2.5
作者:
Galashin, Pavel
Pylyavskyy
通讯作者:
Galashin, Pavel
Pylyavskyy
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
V. Fock
通讯作者:
V. Fock