69 citations · 221 across the 16 of their papers we have counts for
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math.CO2020★ 4 cited
Cyclic symmetry loci in Grasssmannians
Chris Fraser
The Grassmannian admits an action by a finite cyclic group via the cyclic shift map. We give a simple description of the points fixed by each element of this cyclic group, extendin…
math.CO2020
Positroid cluster structures from relabeled plabic graphs
Chris Fraser, Melissa Sherman-Bennett
The Grassmannian is a disjoint union of open positroid varieties , certain smooth irreducible subvarieties whose definition is motivated by total positivity. The coordinate ri…