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math.CO2021★ 1 cited
On folded cluster patterns of affine type
Byung Hee An, Eunjeong Lee
A cluster algebra is a commutative algebra whose structure is decided by a skew-symmetrizable matrix or a quiver. When a skew-symmetrizable matrix is invariant under an action of a…
math.CO2020★ 3 cited
Enumeration of Gelfand-Cetlin type reduced words
Yunhyung Cho, Jang Soo Kim, Eunjeong Lee
The combinatorics of reduced words and commutation classes plays an important role in geometric representation theory. A string polytope is a lattice polytope associated to each re…