Symmetries on plabic graphs and associated polytopes
Xin Fang, Ghislain Fourier·2018-04-10·via math.CO updates on arXiv.org
For Grassmann varieties, we explain how the duality between the Gelfand-Tsetlin polytopes and the Feigin-Fourier-Littelmann-Vinberg polytopes arises from different positive structures.