Sorting and Preimages of Pattern Classes

Claesson, Anders, Henning ´Ulfarsson · 2012 · Discrete Mathematics & Theoretical Computer Science · DOI 10.46298/dmtcs.3066

1 Pith paper cite this work, alongside 8 external citations. Polarity classification is still indexing.

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math.CO · 2026-06-07 · unverdicted · novelty 6.0

The cardinality of s^{m-4}(S_{2m-4}) equals B_m plus (m^2 + 7m - 28)/2 for m at least 5.

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A Characterization of the $2m-4$ Case of Highly Sorted Permutations math.CO · 2026-06-07 · unverdicted · none · ref 6
The cardinality of s^{m-4}(S_{2m-4}) equals B_m plus (m^2 + 7m - 28)/2 for m at least 5.