3 papers
math.AC2026
Structure and geometry of the tableaux algebra
Spencer Daugherty, Nicolle González, Bárbara Muniz +3
We study the monoid algebra of semistandard Young tableaux, which coincides with the Gelfand--Tsetlin semigroup ring when . Among…
math.RT2025
Atomic decomposition for an affine Weyl group of type
Bárbara Muniz, David Plaza, Claudia Rojas-andÃas
We show that the elements of the Kazhdan--Lusztig basis of the spherical Hecke algebra of type have an atomic decomposition. As a by-product, we obtain a new algorithm to com…
math.RT2025
Symplectic Branching through Crystals
Bárbara Muniz
We give an alternative proof of Naito--Sagaki's conjecture, which states that the restriction of -representations to can be described in…