Identifier
-
Mp00080:
Set partitions
—to permutation⟶
Permutations
Mp00087: Permutations —inverse first fundamental transformation⟶ Permutations
St000123: Permutations ⟶ ℤ
Values
{{1}} => [1] => [1] => 0
{{1,2}} => [2,1] => [2,1] => 0
{{1},{2}} => [1,2] => [1,2] => 0
{{1,2,3}} => [2,3,1] => [3,1,2] => 0
{{1,2},{3}} => [2,1,3] => [2,1,3] => 0
{{1,3},{2}} => [3,2,1] => [2,3,1] => 0
{{1},{2,3}} => [1,3,2] => [1,3,2] => 0
{{1},{2},{3}} => [1,2,3] => [1,2,3] => 0
{{1,2,3,4}} => [2,3,4,1] => [4,1,2,3] => 0
{{1,2,3},{4}} => [2,3,1,4] => [3,1,2,4] => 0
{{1,2,4},{3}} => [2,4,3,1] => [3,4,1,2] => 0
{{1,2},{3,4}} => [2,1,4,3] => [2,1,4,3] => 0
{{1,2},{3},{4}} => [2,1,3,4] => [2,1,3,4] => 0
{{1,3,4},{2}} => [3,2,4,1] => [2,4,1,3] => 0
{{1,3},{2,4}} => [3,4,1,2] => [3,1,4,2] => 0
{{1,3},{2},{4}} => [3,2,1,4] => [2,3,1,4] => 0
{{1,4},{2,3}} => [4,3,2,1] => [3,2,4,1] => 1
{{1},{2,3,4}} => [1,3,4,2] => [1,4,2,3] => 0
{{1},{2,3},{4}} => [1,3,2,4] => [1,3,2,4] => 0
{{1,4},{2},{3}} => [4,2,3,1] => [2,3,4,1] => 0
{{1},{2,4},{3}} => [1,4,3,2] => [1,3,4,2] => 0
{{1},{2},{3,4}} => [1,2,4,3] => [1,2,4,3] => 0
{{1},{2},{3},{4}} => [1,2,3,4] => [1,2,3,4] => 0
{{1,2,3,4,5}} => [2,3,4,5,1] => [5,1,2,3,4] => 0
{{1,2,3,4},{5}} => [2,3,4,1,5] => [4,1,2,3,5] => 0
{{1,2,3,5},{4}} => [2,3,5,4,1] => [4,5,1,2,3] => 0
{{1,2,3},{4,5}} => [2,3,1,5,4] => [3,1,2,5,4] => 0
{{1,2,3},{4},{5}} => [2,3,1,4,5] => [3,1,2,4,5] => 0
{{1,2,4,5},{3}} => [2,4,3,5,1] => [3,5,1,2,4] => 0
{{1,2,4},{3,5}} => [2,4,5,1,3] => [4,1,2,5,3] => 0
{{1,2,4},{3},{5}} => [2,4,3,1,5] => [3,4,1,2,5] => 0
{{1,2,5},{3,4}} => [2,5,4,3,1] => [4,3,5,1,2] => 2
{{1,2},{3,4,5}} => [2,1,4,5,3] => [2,1,5,3,4] => 0
{{1,2},{3,4},{5}} => [2,1,4,3,5] => [2,1,4,3,5] => 0
{{1,2,5},{3},{4}} => [2,5,3,4,1] => [3,4,5,1,2] => 0
{{1,2},{3,5},{4}} => [2,1,5,4,3] => [2,1,4,5,3] => 0
{{1,2},{3},{4,5}} => [2,1,3,5,4] => [2,1,3,5,4] => 0
{{1,2},{3},{4},{5}} => [2,1,3,4,5] => [2,1,3,4,5] => 0
{{1,3,4,5},{2}} => [3,2,4,5,1] => [2,5,1,3,4] => 0
{{1,3,4},{2,5}} => [3,5,4,1,2] => [4,1,3,5,2] => 1
{{1,3,4},{2},{5}} => [3,2,4,1,5] => [2,4,1,3,5] => 0
{{1,3,5},{2,4}} => [3,4,5,2,1] => [4,2,5,1,3] => 1
{{1,3},{2,4,5}} => [3,4,1,5,2] => [3,1,5,2,4] => 0
{{1,3},{2,4},{5}} => [3,4,1,2,5] => [3,1,4,2,5] => 0
{{1,3,5},{2},{4}} => [3,2,5,4,1] => [2,4,5,1,3] => 0
{{1,3},{2,5},{4}} => [3,5,1,4,2] => [3,1,4,5,2] => 0
{{1,3},{2},{4,5}} => [3,2,1,5,4] => [2,3,1,5,4] => 0
{{1,3},{2},{4},{5}} => [3,2,1,4,5] => [2,3,1,4,5] => 0
{{1,4,5},{2,3}} => [4,3,2,5,1] => [3,2,5,1,4] => 1
{{1,4},{2,3,5}} => [4,3,5,1,2] => [4,1,5,2,3] => 0
{{1,4},{2,3},{5}} => [4,3,2,1,5] => [3,2,4,1,5] => 1
{{1,5},{2,3,4}} => [5,3,4,2,1] => [4,2,3,5,1] => 2
{{1},{2,3,4,5}} => [1,3,4,5,2] => [1,5,2,3,4] => 0
{{1},{2,3,4},{5}} => [1,3,4,2,5] => [1,4,2,3,5] => 0
{{1,5},{2,3},{4}} => [5,3,2,4,1] => [3,2,4,5,1] => 1
{{1},{2,3,5},{4}} => [1,3,5,4,2] => [1,4,5,2,3] => 0
{{1},{2,3},{4,5}} => [1,3,2,5,4] => [1,3,2,5,4] => 0
{{1},{2,3},{4},{5}} => [1,3,2,4,5] => [1,3,2,4,5] => 0
{{1,4,5},{2},{3}} => [4,2,3,5,1] => [2,3,5,1,4] => 0
{{1,4},{2,5},{3}} => [4,5,3,1,2] => [3,4,1,5,2] => 0
{{1,4},{2},{3,5}} => [4,2,5,1,3] => [2,4,1,5,3] => 0
{{1,4},{2},{3},{5}} => [4,2,3,1,5] => [2,3,4,1,5] => 0
{{1,5},{2,4},{3}} => [5,4,3,2,1] => [3,4,2,5,1] => 1
{{1},{2,4,5},{3}} => [1,4,3,5,2] => [1,3,5,2,4] => 0
{{1},{2,4},{3,5}} => [1,4,5,2,3] => [1,4,2,5,3] => 0
{{1},{2,4},{3},{5}} => [1,4,3,2,5] => [1,3,4,2,5] => 0
{{1,5},{2},{3,4}} => [5,2,4,3,1] => [2,4,3,5,1] => 1
{{1},{2,5},{3,4}} => [1,5,4,3,2] => [1,4,3,5,2] => 1
{{1},{2},{3,4,5}} => [1,2,4,5,3] => [1,2,5,3,4] => 0
{{1},{2},{3,4},{5}} => [1,2,4,3,5] => [1,2,4,3,5] => 0
{{1,5},{2},{3},{4}} => [5,2,3,4,1] => [2,3,4,5,1] => 0
{{1},{2,5},{3},{4}} => [1,5,3,4,2] => [1,3,4,5,2] => 0
{{1},{2},{3,5},{4}} => [1,2,5,4,3] => [1,2,4,5,3] => 0
{{1},{2},{3},{4,5}} => [1,2,3,5,4] => [1,2,3,5,4] => 0
{{1},{2},{3},{4},{5}} => [1,2,3,4,5] => [1,2,3,4,5] => 0
{{1,2,3,4,5,6}} => [2,3,4,5,6,1] => [6,1,2,3,4,5] => 0
{{1,2,3,4,5},{6}} => [2,3,4,5,1,6] => [5,1,2,3,4,6] => 0
{{1,2,3,4,6},{5}} => [2,3,4,6,5,1] => [5,6,1,2,3,4] => 0
{{1,2,3,4},{5,6}} => [2,3,4,1,6,5] => [4,1,2,3,6,5] => 0
{{1,2,3,4},{5},{6}} => [2,3,4,1,5,6] => [4,1,2,3,5,6] => 0
{{1,2,3,5,6},{4}} => [2,3,5,4,6,1] => [4,6,1,2,3,5] => 0
{{1,2,3,5},{4,6}} => [2,3,5,6,1,4] => [5,1,2,3,6,4] => 0
{{1,2,3,5},{4},{6}} => [2,3,5,4,1,6] => [4,5,1,2,3,6] => 0
{{1,2,3,6},{4,5}} => [2,3,6,5,4,1] => [5,4,6,1,2,3] => 3
{{1,2,3},{4,5,6}} => [2,3,1,5,6,4] => [3,1,2,6,4,5] => 0
{{1,2,3},{4,5},{6}} => [2,3,1,5,4,6] => [3,1,2,5,4,6] => 0
{{1,2,3,6},{4},{5}} => [2,3,6,4,5,1] => [4,5,6,1,2,3] => 0
{{1,2,3},{4,6},{5}} => [2,3,1,6,5,4] => [3,1,2,5,6,4] => 0
{{1,2,3},{4},{5,6}} => [2,3,1,4,6,5] => [3,1,2,4,6,5] => 0
{{1,2,3},{4},{5},{6}} => [2,3,1,4,5,6] => [3,1,2,4,5,6] => 0
{{1,2,4,5,6},{3}} => [2,4,3,5,6,1] => [3,6,1,2,4,5] => 0
{{1,2,4,5},{3,6}} => [2,4,6,5,1,3] => [5,1,2,4,6,3] => 1
{{1,2,4,5},{3},{6}} => [2,4,3,5,1,6] => [3,5,1,2,4,6] => 0
{{1,2,4,6},{3,5}} => [2,4,5,6,3,1] => [5,3,6,1,2,4] => 2
{{1,2,4},{3,5,6}} => [2,4,5,1,6,3] => [4,1,2,6,3,5] => 0
{{1,2,4},{3,5},{6}} => [2,4,5,1,3,6] => [4,1,2,5,3,6] => 0
{{1,2,4,6},{3},{5}} => [2,4,3,6,5,1] => [3,5,6,1,2,4] => 0
{{1,2,4},{3,6},{5}} => [2,4,6,1,5,3] => [4,1,2,5,6,3] => 0
{{1,2,4},{3},{5,6}} => [2,4,3,1,6,5] => [3,4,1,2,6,5] => 0
{{1,2,4},{3},{5},{6}} => [2,4,3,1,5,6] => [3,4,1,2,5,6] => 0
{{1,2,5,6},{3,4}} => [2,5,4,3,6,1] => [4,3,6,1,2,5] => 2
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Description
The difference in Coxeter length of a permutation and its image under the Simion-Schmidt map.
The Simion-Schmidt map takes a permutation and turns each occcurrence of [3,2,1] into an occurrence of [3,1,2], thus reducing the number of inversions of the permutation. This statistic records the difference in length of the permutation and its image.
Apparently, this statistic can be described as the number of occurrences of the mesh pattern ([3,2,1], {(0,3),(0,2)}). Equivalent mesh patterns are ([3,2,1], {(0,2),(1,2)}), ([3,2,1], {(0,3),(1,3)}) and ([3,2,1], {(1,2),(1,3)}).
The Simion-Schmidt map takes a permutation and turns each occcurrence of [3,2,1] into an occurrence of [3,1,2], thus reducing the number of inversions of the permutation. This statistic records the difference in length of the permutation and its image.
Apparently, this statistic can be described as the number of occurrences of the mesh pattern ([3,2,1], {(0,3),(0,2)}). Equivalent mesh patterns are ([3,2,1], {(0,2),(1,2)}), ([3,2,1], {(0,3),(1,3)}) and ([3,2,1], {(1,2),(1,3)}).
Map
to permutation
Description
Sends the set partition to the permutation obtained by considering the blocks as increasing cycles.
Map
inverse first fundamental transformation
Description
Let σ=(i11⋯i1k1)⋯(iℓ1⋯iℓkℓ) be a permutation given by cycle notation such that every cycle starts with its maximal entry, and all cycles are ordered increasingly by these maximal entries.
Maps σ to the permutation [i11,…,i1k1,…,iℓ1,…,iℓkℓ] in one-line notation.
In other words, this map sends the maximal entries of the cycles to the left-to-right maxima, and the sequences between two left-to-right maxima are given by the cycles.
Maps σ to the permutation [i11,…,i1k1,…,iℓ1,…,iℓkℓ] in one-line notation.
In other words, this map sends the maximal entries of the cycles to the left-to-right maxima, and the sequences between two left-to-right maxima are given by the cycles.
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