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Crystal structures on FFLV polytopes
Published Web Location
https://doi.org/10.5070/C61055373Abstract
In this paper we formulate a conjecture about the crystal structures on Feigin--Fourier--Littelmann--Vinberg (FFLV) polytopes and prove it in small rank examples. In the case of multiples of a fundamental weight this approach recovers the crystal structures defined by Kus. A key step in this approach is the realisation of FFLV polytopes as Minkowski sums of Lusztig polytopes associated to different reduced words.
Keywords: Crystal structure, Lusztig polytope, FFLV polytope.
Mathematics Subject Classifications: 05E10, 17B10