Identifier
-
Mp00220:
Set partitions
—Yip⟶
Set partitions
Mp00258: Set partitions —Standard tableau associated to a set partition⟶ Standard tableaux
Mp00081: Standard tableaux —reading word permutation⟶ Permutations
St000647: Permutations ⟶ ℤ
Values
{{1}} => {{1}} => [[1]] => [1] => 0
{{1,2}} => {{1,2}} => [[1,2]] => [1,2] => 0
{{1},{2}} => {{1},{2}} => [[1],[2]] => [2,1] => 0
{{1,2,3}} => {{1,2,3}} => [[1,2,3]] => [1,2,3] => 0
{{1,2},{3}} => {{1,2},{3}} => [[1,2],[3]] => [3,1,2] => 1
{{1,3},{2}} => {{1},{2,3}} => [[1,3],[2]] => [2,1,3] => 0
{{1},{2,3}} => {{1,3},{2}} => [[1,3],[2]] => [2,1,3] => 0
{{1},{2},{3}} => {{1},{2},{3}} => [[1],[2],[3]] => [3,2,1] => 0
{{1,2,3,4}} => {{1,2,3,4}} => [[1,2,3,4]] => [1,2,3,4] => 0
{{1,2,3},{4}} => {{1,2,3},{4}} => [[1,2,3],[4]] => [4,1,2,3] => 1
{{1,2,4},{3}} => {{1,2},{3,4}} => [[1,2],[3,4]] => [3,4,1,2] => 1
{{1,2},{3,4}} => {{1,2,4},{3}} => [[1,2,4],[3]] => [3,1,2,4] => 1
{{1,2},{3},{4}} => {{1,2},{3},{4}} => [[1,2],[3],[4]] => [4,3,1,2] => 1
{{1,3,4},{2}} => {{1},{2,3,4}} => [[1,3,4],[2]] => [2,1,3,4] => 0
{{1,3},{2,4}} => {{1,4},{2,3}} => [[1,3],[2,4]] => [2,4,1,3] => 1
{{1,3},{2},{4}} => {{1},{2,3},{4}} => [[1,3],[2],[4]] => [4,2,1,3] => 1
{{1,4},{2,3}} => {{1,3},{2,4}} => [[1,3],[2,4]] => [2,4,1,3] => 1
{{1},{2,3,4}} => {{1,3,4},{2}} => [[1,3,4],[2]] => [2,1,3,4] => 0
{{1},{2,3},{4}} => {{1,3},{2},{4}} => [[1,3],[2],[4]] => [4,2,1,3] => 1
{{1,4},{2},{3}} => {{1},{2},{3,4}} => [[1,4],[2],[3]] => [3,2,1,4] => 0
{{1},{2,4},{3}} => {{1},{2,4},{3}} => [[1,4],[2],[3]] => [3,2,1,4] => 0
{{1},{2},{3,4}} => {{1,4},{2},{3}} => [[1,4],[2],[3]] => [3,2,1,4] => 0
{{1},{2},{3},{4}} => {{1},{2},{3},{4}} => [[1],[2],[3],[4]] => [4,3,2,1] => 0
{{1,2,3,4,5}} => {{1,2,3,4,5}} => [[1,2,3,4,5]] => [1,2,3,4,5] => 0
{{1,2,3,4},{5}} => {{1,2,3,4},{5}} => [[1,2,3,4],[5]] => [5,1,2,3,4] => 1
{{1,2,3,5},{4}} => {{1,2,3},{4,5}} => [[1,2,3],[4,5]] => [4,5,1,2,3] => 1
{{1,2,3},{4,5}} => {{1,2,3,5},{4}} => [[1,2,3,5],[4]] => [4,1,2,3,5] => 1
{{1,2,3},{4},{5}} => {{1,2,3},{4},{5}} => [[1,2,3],[4],[5]] => [5,4,1,2,3] => 1
{{1,2,4,5},{3}} => {{1,2,5},{3,4}} => [[1,2,5],[3,4]] => [3,4,1,2,5] => 1
{{1,2,4},{3,5}} => {{1,2},{3,4,5}} => [[1,2,5],[3,4]] => [3,4,1,2,5] => 1
{{1,2,4},{3},{5}} => {{1,2},{3,4},{5}} => [[1,2],[3,4],[5]] => [5,3,4,1,2] => 2
{{1,2,5},{3,4}} => {{1,2,4},{3,5}} => [[1,2,4],[3,5]] => [3,5,1,2,4] => 1
{{1,2},{3,4,5}} => {{1,2,4,5},{3}} => [[1,2,4,5],[3]] => [3,1,2,4,5] => 1
{{1,2},{3,4},{5}} => {{1,2,4},{3},{5}} => [[1,2,4],[3],[5]] => [5,3,1,2,4] => 2
{{1,2,5},{3},{4}} => {{1,2},{3},{4,5}} => [[1,2],[3,5],[4]] => [4,3,5,1,2] => 1
{{1,2},{3,5},{4}} => {{1,2},{3,5},{4}} => [[1,2],[3,5],[4]] => [4,3,5,1,2] => 1
{{1,2},{3},{4,5}} => {{1,2,5},{3},{4}} => [[1,2,5],[3],[4]] => [4,3,1,2,5] => 1
{{1,2},{3},{4},{5}} => {{1,2},{3},{4},{5}} => [[1,2],[3],[4],[5]] => [5,4,3,1,2] => 1
{{1,3,4,5},{2}} => {{1},{2,3,4,5}} => [[1,3,4,5],[2]] => [2,1,3,4,5] => 0
{{1,3,4},{2,5}} => {{1,5},{2,3,4}} => [[1,3,4],[2,5]] => [2,5,1,3,4] => 1
{{1,3,4},{2},{5}} => {{1},{2,3,4},{5}} => [[1,3,4],[2],[5]] => [5,2,1,3,4] => 1
{{1,3,5},{2,4}} => {{1,4},{2,3,5}} => [[1,3,5],[2,4]] => [2,4,1,3,5] => 1
{{1,3},{2,4,5}} => {{1,4,5},{2,3}} => [[1,3,5],[2,4]] => [2,4,1,3,5] => 1
{{1,3},{2,4},{5}} => {{1,4},{2,3},{5}} => [[1,3],[2,4],[5]] => [5,2,4,1,3] => 2
{{1,3,5},{2},{4}} => {{1,5},{2,3},{4}} => [[1,3],[2,5],[4]] => [4,2,5,1,3] => 2
{{1,3},{2,5},{4}} => {{1},{2,3},{4,5}} => [[1,3],[2,5],[4]] => [4,2,5,1,3] => 2
{{1,3},{2},{4,5}} => {{1},{2,3,5},{4}} => [[1,3,5],[2],[4]] => [4,2,1,3,5] => 1
{{1,3},{2},{4},{5}} => {{1},{2,3},{4},{5}} => [[1,3],[2],[4],[5]] => [5,4,2,1,3] => 1
{{1,4,5},{2,3}} => {{1,3,5},{2,4}} => [[1,3,5],[2,4]] => [2,4,1,3,5] => 1
{{1,4},{2,3,5}} => {{1,3},{2,4,5}} => [[1,3,5],[2,4]] => [2,4,1,3,5] => 1
{{1,4},{2,3},{5}} => {{1,3},{2,4},{5}} => [[1,3],[2,4],[5]] => [5,2,4,1,3] => 2
{{1,5},{2,3,4}} => {{1,3,4},{2,5}} => [[1,3,4],[2,5]] => [2,5,1,3,4] => 1
{{1},{2,3,4,5}} => {{1,3,4,5},{2}} => [[1,3,4,5],[2]] => [2,1,3,4,5] => 0
{{1},{2,3,4},{5}} => {{1,3,4},{2},{5}} => [[1,3,4],[2],[5]] => [5,2,1,3,4] => 1
{{1,5},{2,3},{4}} => {{1,3},{2},{4,5}} => [[1,3],[2,5],[4]] => [4,2,5,1,3] => 2
{{1},{2,3,5},{4}} => {{1,3},{2,5},{4}} => [[1,3],[2,5],[4]] => [4,2,5,1,3] => 2
{{1},{2,3},{4,5}} => {{1,3,5},{2},{4}} => [[1,3,5],[2],[4]] => [4,2,1,3,5] => 1
{{1},{2,3},{4},{5}} => {{1,3},{2},{4},{5}} => [[1,3],[2],[4],[5]] => [5,4,2,1,3] => 1
{{1,4,5},{2},{3}} => {{1},{2},{3,4,5}} => [[1,4,5],[2],[3]] => [3,2,1,4,5] => 0
{{1,4},{2,5},{3}} => {{1},{2,5},{3,4}} => [[1,4],[2,5],[3]] => [3,2,5,1,4] => 1
{{1,4},{2},{3,5}} => {{1,5},{2},{3,4}} => [[1,4],[2,5],[3]] => [3,2,5,1,4] => 1
{{1,4},{2},{3},{5}} => {{1},{2},{3,4},{5}} => [[1,4],[2],[3],[5]] => [5,3,2,1,4] => 1
{{1,5},{2,4},{3}} => {{1},{2,4},{3,5}} => [[1,4],[2,5],[3]] => [3,2,5,1,4] => 1
{{1},{2,4,5},{3}} => {{1},{2,4,5},{3}} => [[1,4,5],[2],[3]] => [3,2,1,4,5] => 0
{{1},{2,4},{3,5}} => {{1,5},{2,4},{3}} => [[1,4],[2,5],[3]] => [3,2,5,1,4] => 1
{{1},{2,4},{3},{5}} => {{1},{2,4},{3},{5}} => [[1,4],[2],[3],[5]] => [5,3,2,1,4] => 1
{{1,5},{2},{3,4}} => {{1,4},{2},{3,5}} => [[1,4],[2,5],[3]] => [3,2,5,1,4] => 1
{{1},{2,5},{3,4}} => {{1,4},{2,5},{3}} => [[1,4],[2,5],[3]] => [3,2,5,1,4] => 1
{{1},{2},{3,4,5}} => {{1,4,5},{2},{3}} => [[1,4,5],[2],[3]] => [3,2,1,4,5] => 0
{{1},{2},{3,4},{5}} => {{1,4},{2},{3},{5}} => [[1,4],[2],[3],[5]] => [5,3,2,1,4] => 1
{{1,5},{2},{3},{4}} => {{1},{2},{3},{4,5}} => [[1,5],[2],[3],[4]] => [4,3,2,1,5] => 0
{{1},{2,5},{3},{4}} => {{1},{2},{3,5},{4}} => [[1,5],[2],[3],[4]] => [4,3,2,1,5] => 0
{{1},{2},{3,5},{4}} => {{1},{2,5},{3},{4}} => [[1,5],[2],[3],[4]] => [4,3,2,1,5] => 0
{{1},{2},{3},{4,5}} => {{1,5},{2},{3},{4}} => [[1,5],[2],[3],[4]] => [4,3,2,1,5] => 0
{{1},{2},{3},{4},{5}} => {{1},{2},{3},{4},{5}} => [[1],[2],[3],[4],[5]] => [5,4,3,2,1] => 0
{{1,2,3,4,5,6}} => {{1,2,3,4,5,6}} => [[1,2,3,4,5,6]] => [1,2,3,4,5,6] => 0
{{1,2,3,4,5},{6}} => {{1,2,3,4,5},{6}} => [[1,2,3,4,5],[6]] => [6,1,2,3,4,5] => 1
{{1,2,3,4,6},{5}} => {{1,2,3,4},{5,6}} => [[1,2,3,4],[5,6]] => [5,6,1,2,3,4] => 1
{{1,2,3,4},{5,6}} => {{1,2,3,4,6},{5}} => [[1,2,3,4,6],[5]] => [5,1,2,3,4,6] => 1
{{1,2,3,4},{5},{6}} => {{1,2,3,4},{5},{6}} => [[1,2,3,4],[5],[6]] => [6,5,1,2,3,4] => 1
{{1,2,3,5,6},{4}} => {{1,2,3,6},{4,5}} => [[1,2,3,6],[4,5]] => [4,5,1,2,3,6] => 1
{{1,2,3,5},{4,6}} => {{1,2,3},{4,5,6}} => [[1,2,3],[4,5,6]] => [4,5,6,1,2,3] => 1
{{1,2,3,5},{4},{6}} => {{1,2,3},{4,5},{6}} => [[1,2,3],[4,5],[6]] => [6,4,5,1,2,3] => 2
{{1,2,3,6},{4,5}} => {{1,2,3,5},{4,6}} => [[1,2,3,5],[4,6]] => [4,6,1,2,3,5] => 1
{{1,2,3},{4,5,6}} => {{1,2,3,5,6},{4}} => [[1,2,3,5,6],[4]] => [4,1,2,3,5,6] => 1
{{1,2,3},{4,5},{6}} => {{1,2,3,5},{4},{6}} => [[1,2,3,5],[4],[6]] => [6,4,1,2,3,5] => 2
{{1,2,3,6},{4},{5}} => {{1,2,3},{4},{5,6}} => [[1,2,3],[4,6],[5]] => [5,4,6,1,2,3] => 1
{{1,2,3},{4,6},{5}} => {{1,2,3},{4,6},{5}} => [[1,2,3],[4,6],[5]] => [5,4,6,1,2,3] => 1
{{1,2,3},{4},{5,6}} => {{1,2,3,6},{4},{5}} => [[1,2,3,6],[4],[5]] => [5,4,1,2,3,6] => 1
{{1,2,3},{4},{5},{6}} => {{1,2,3},{4},{5},{6}} => [[1,2,3],[4],[5],[6]] => [6,5,4,1,2,3] => 1
{{1,2,4,5,6},{3}} => {{1,2,5,6},{3,4}} => [[1,2,5,6],[3,4]] => [3,4,1,2,5,6] => 1
{{1,2,4,5},{3,6}} => {{1,2,5},{3,4,6}} => [[1,2,5],[3,4,6]] => [3,4,6,1,2,5] => 1
{{1,2,4,5},{3},{6}} => {{1,2,5},{3,4},{6}} => [[1,2,5],[3,4],[6]] => [6,3,4,1,2,5] => 2
{{1,2,4,6},{3,5}} => {{1,2,6},{3,4,5}} => [[1,2,5],[3,4,6]] => [3,4,6,1,2,5] => 1
{{1,2,4},{3,5,6}} => {{1,2},{3,4,5,6}} => [[1,2,5,6],[3,4]] => [3,4,1,2,5,6] => 1
{{1,2,4},{3,5},{6}} => {{1,2},{3,4,5},{6}} => [[1,2,5],[3,4],[6]] => [6,3,4,1,2,5] => 2
{{1,2,4,6},{3},{5}} => {{1,2},{3,4,6},{5}} => [[1,2,6],[3,4],[5]] => [5,3,4,1,2,6] => 2
{{1,2,4},{3,6},{5}} => {{1,2},{3,4},{5,6}} => [[1,2],[3,4],[5,6]] => [5,6,3,4,1,2] => 2
{{1,2,4},{3},{5,6}} => {{1,2,6},{3,4},{5}} => [[1,2,6],[3,4],[5]] => [5,3,4,1,2,6] => 2
{{1,2,4},{3},{5},{6}} => {{1,2},{3,4},{5},{6}} => [[1,2],[3,4],[5],[6]] => [6,5,3,4,1,2] => 2
{{1,2,5,6},{3,4}} => {{1,2,4,6},{3,5}} => [[1,2,4,6],[3,5]] => [3,5,1,2,4,6] => 1
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Description
The number of big descents of a permutation.
For a permutation $\pi$, this is the number of indices $i$ such that $\pi(i)-\pi(i+1) > 1$.
The generating functions of big descents is equal to the generating function of (normal) descents after sending a permutation from cycle to one-line notation Mp00090cycle-as-one-line notation, see [Theorem 2.5, 1].
For the number of small descents, see St000214The number of adjacencies of a permutation..
For a permutation $\pi$, this is the number of indices $i$ such that $\pi(i)-\pi(i+1) > 1$.
The generating functions of big descents is equal to the generating function of (normal) descents after sending a permutation from cycle to one-line notation Mp00090cycle-as-one-line notation, see [Theorem 2.5, 1].
For the number of small descents, see St000214The number of adjacencies of a permutation..
Map
Yip
Description
A transformation of set partitions due to Yip.
Return the set partition of $\{1,...,n\}$ corresponding to the set of arcs, interpreted as a rook placement, applying Yip's bijection $\psi$.
Return the set partition of $\{1,...,n\}$ corresponding to the set of arcs, interpreted as a rook placement, applying Yip's bijection $\psi$.
Map
reading word permutation
Description
Return the permutation obtained by reading the entries of the tableau row by row, starting with the bottom-most row in English notation.
Map
Standard tableau associated to a set partition
Description
Sends a set partition to the associated standard tableau.
The $j$th column of the standard tableau associated to a set partition is the set of $j$th smallest elements of its blocks arranged in increassing order.
The $j$th column of the standard tableau associated to a set partition is the set of $j$th smallest elements of its blocks arranged in increassing order.
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