Fraser's quasi-cluster transformation conjecture for Richardson twists
Fraser's quasi-cluster transformation conjecture for Richardson twists
Let and let be the right twist map. A quasi-cluster transformation means a sequence of cluster mutations followed by rescaling by Laurent monomials in frozen variables. Let and denote the cluster algebras associated with Ingermanson's and Leclerc's seeds, respectively. Richardson twist conjecture. The twist map is a quasi-cluster transformation. Consequently, any cluster of is related to any cluster of by a sequence of mutations and rescaling by Laurent monomials in frozen variables. The source notes that this extends the analogous conjecture for positroid varieties; its truth in the Richardson setting is not established in the supplied text.
Sources & referencesView supporting material
Primary source
Khrystyna Serhiyenko and Melissa Sherman-Bennett, “Leclerc's conjecture on a cluster structure for type A Richardson varieties”, arXiv:2210.13302 (2022).
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