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math.AG2026
A construction of polyptych lattices via a pair of Gorenstein PL cones
Laura Escobar, Megumi Harada, Christopher Manon
The theory of polyptych lattices seeks to incorporate, into a single combinatorial framework, the piecewise-linear bijections (mutations) that appear in many theories that generali…
math.AG2026
Dimensions of type Hessenberg varieties over a fixed sheet
Megumi Harada, Martha Precup, Colleen Robichaux
Hessenberg varieties are subvarieties of the flag variety parameterized by a Hessenberg function and a ma…