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math.CO2020
Kohnert's rule for flagged Schur modules
Sam Armon, Sami Assaf, Grant Bowling +1
Flagged Schur modules generalize the irreducible representations of the general linear group under the action of the Borel subalgebra. Their characters include many important gener…
math.RT2020
Transition matrices between Young's natural and seminormal representations
Sam Armon, Tom Halverson
We derive a formula for the entries in the change-of-basis matrix between Young's seminormal and natural representations of the symmetric group. These entries are determined as sum…