Derek Levin
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View article: Pattern avoidance in forests of binary shrubs
Pattern avoidance in forests of binary shrubs Open
We investigate pattern avoidance in permutations satisfying some additional restrictions. These are naturally considered in terms of avoiding patterns in linear extensions of certain forest-like partially ordered sets, which we call binary…
View article: Pattern Avoidance in k-ary Heaps
Pattern Avoidance in k-ary Heaps Open
In this paper, we consider pattern avoidance in k-ary heaps, where the permutation associated with the heap is found by recording the nodes as they are encountered in a breadth-first search. We enumerate heaps that avoid patterns of length…
View article: Pattern avoidance in forests of binary shrubs
Pattern avoidance in forests of binary shrubs Open
We investigate pattern avoidance in permutations satisfying some additional restrictions. These are naturally considered in terms of avoiding patterns in linear extensions of certain forest-like partially ordered sets, which we call binary…