Unbalanced Wilf-equivalence conjecture for inversion-sequence pattern pairs
Unbalanced Wilf-equivalence conjecture for inversion-sequence pattern pairs
For a tuple of patterns, write when the corresponding inversion-sequence avoidance classes are Wilf-equivalent, meaning they have equal cardinality in every length. Unbalanced Wilf-equivalence conjecture. The following Wilf-equivalences hold:
The first equivalence has been confirmed in the paper, and the third was established by Martinez and Savage; the supplied status evidence therefore leaves the remaining conjectural equivalence unresolved.
Sources & referencesView supporting material
Primary source
Chunyan Yan and Zhicong Lin, “Inversion sequences avoiding pairs of patterns”, arXiv:1912.03674 (2020).
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