Geodesic
On the diagram of Schröder permutations
The electronic journal of combinatorics, Permutation Patterns, Tome 9 (2002) no. 2
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Egge and Mansour have recently studied permutations which avoid $1243$ and $2143$ regarding the occurrence of certain additional patterns. Some of the open questions related to their work can easily be answered by using permutation diagrams. As for $132$-avoiding permutations the diagram approach gives insights into the structure of $\{1243,2143\}$-avoiding permutations that yield simple proofs for some enumerative results concerning forbidden patterns in such permutations.
DOI : 10.37236/1680
Classification : 05A05, 05A15
Mots-clés : bijective enumeration, premutation diagrams, \(\{1243,2143\}\)-avoiding permutations 
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     title = {On the diagram of {Schr\"oder} permutations},
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Astrid Reifegerste. On the diagram of Schröder permutations. The electronic journal of combinatorics, Permutation Patterns, Tome 9 (2002) no. 2. doi: 10.37236/1680

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