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math.CO2024
BiSC: An algorithm for discovering generalized permutation patterns
Henning Ulfarsson
Theorems relating permutations with objects in other fields of mathematics are often stated in terms of avoided patterns. Examples include various classes of Schubert varieties fro…
cs.DM2024
Restricted Permutations Enumerated by Inversions
Atli Fannar Franklín, Anders Claesson, Christian Bean +2
Permutations are usually enumerated by size, but new results can be found by enumerating them by inversions instead, in which case one must restrict one's attention to indecomposab…