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math.CO2003★ 6 cited
Profile classes and partial well-order for permutations
Maximillian Murphy, Vincent Vatter
It is known that the set of permutations, under the pattern containment ordering, is not a partial well-order. Characterizing the partially well-ordered closed sets (equivalently:…
math.CO2003
Finitely labeled generating trees and restricted permutations
Vince Vatter
Generating trees are a useful technique in the enumeration of various combinatorial objects, particularly restricted permutations. Quite often the generating tree for the set of pe…