# Subregularity in infinitely labeled generating trees of restricted permutations

@inproceedings{Mansour2021SubregularityII, title={Subregularity in infinitely labeled generating trees of restricted permutations}, author={Toufik Mansour and Reza Rastegar and Mark Shattuck}, year={2021} }

In this paper, we revisit the application of generating trees to the pattern avoidance problem for permutations. In particular, we study this problem for certain general sets of patterns and propose a new procedure leveraging the FinLabel algorithm and exploiting the subregularities in the associated generating trees. We consider some general kinds of generating trees for which the FinLabel algorithm fails to determine in a finite number of iterations the generating function that enumerates the…

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