Tortoise and hare operations from generalized stack-sorting extend abelian complexity to infinite words and reveal structural connections for the Thue-Morse word to its special factors.
Defant, Proofs of conjectures about pattern-avoiding linear exten- sions,Discrete Math
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Subword enumeration up to stack-sorting equivalence
Tortoise and hare operations from generalized stack-sorting extend abelian complexity to infinite words and reveal structural connections for the Thue-Morse word to its special factors.