Caden Bielawa, Robert Davis, Daniel Greeson and Qinhan
Zhou
Vol. 12 (2019), No. 4, 549–563
DOI: 10.2140/involve.2019.12.549
Abstract
A frequent topic in the study of pattern avoidance is identifying when two sets of patterns
are Wilf equivalent,
that is, when
for all .
In recent work of Dokos et al. the notion of Wilf equivalence was refined to reflect
when avoidance of classical patterns preserves certain statistics. We continue their
work by examining des-Wilf equivalence when avoiding certain nonclassical
patterns.
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