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math.CO2004
Packing sets of patterns
Alexander Burstein, Peter Hästö
Packing density is a permutation occurrence statistic which describes the maximal number of permutations of a given type that can occur in another permutation. In this article we f…
math.CO2004
Restricted Dumont permutations
Alexander Burstein
We analyze the structure and enumerate Dumont permutations of the first and second kinds avoiding certain patterns or sets of patterns of length 3 and 4. Some cardinalities are giv…