2018
DOI: 10.1016/j.jalgebra.2017.11.019
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Tropical critical points of the superpotential of a flag variety

Abstract: Abstract. In this paper we investigate the idea of a tropical critical point of the superpotential for the full flag variety of type A. Recall that associated to an irreducible representation of G = SLn(C) are various polytopes whose integral points parameterize a basis for the representation, e.g. the GelfandZetlin polytope. Such polytopes can be constructed via the theory of geometric crystals by tropicalising a certain function, and in fact, the function involved coincides with the superpotential from the L… Show more

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Cited by 4 publications
(18 citation statements)
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“…However the proofs are very different and the representation theory arguments of [Kav15] do not extend to our setting. We note also a recent paper of Judd [Jud18], which adds detail to this picture in the case of SL n B.…”
mentioning
confidence: 68%
“…However the proofs are very different and the representation theory arguments of [Kav15] do not extend to our setting. We note also a recent paper of Judd [Jud18], which adds detail to this picture in the case of SL n B.…”
mentioning
confidence: 68%
“…Thus our main result, Theorem 1.1, can be viewed as a simultaneous generalisation of [Jud18] and [Gal97]. We also note that Galkin's theorem is in fact an ingredient that is used in our construction of the leading term coefficient of p crit .…”
mentioning
confidence: 76%
“…1.3.1. The first application of our result is the analogue for toric varieties of the result for flag varieties in [Jud18]. Namely if X Σ is a complete toric variety with a torus-invariant Weil divisor D, then we associate a positive, complete Laurent polynomial to X Σ and with it its tropical critical point, which, if D is ample, lies in the moment polytope P D .…”
mentioning
confidence: 85%
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