Identifier
-
Mp00080:
Set partitions
—to permutation⟶
Permutations
Mp00238: Permutations —Clarke-Steingrimsson-Zeng⟶ Permutations
Mp00065: Permutations —permutation poset⟶ Posets
St001964: Posets ⟶ ℤ
Values
{{1}} => [1] => [1] => ([],1) => 0
{{1,2}} => [2,1] => [2,1] => ([],2) => 0
{{1},{2}} => [1,2] => [1,2] => ([(0,1)],2) => 0
{{1,2,3}} => [2,3,1] => [3,2,1] => ([],3) => 0
{{1,2},{3}} => [2,1,3] => [2,1,3] => ([(0,2),(1,2)],3) => 0
{{1},{2,3}} => [1,3,2] => [1,3,2] => ([(0,1),(0,2)],3) => 0
{{1},{2},{3}} => [1,2,3] => [1,2,3] => ([(0,2),(2,1)],3) => 0
{{1,2,3},{4}} => [2,3,1,4] => [3,2,1,4] => ([(0,3),(1,3),(2,3)],4) => 1
{{1,2,4},{3}} => [2,4,3,1] => [3,2,4,1] => ([(1,3),(2,3)],4) => 0
{{1,2},{3,4}} => [2,1,4,3] => [2,1,4,3] => ([(0,2),(0,3),(1,2),(1,3)],4) => 2
{{1,2},{3},{4}} => [2,1,3,4] => [2,1,3,4] => ([(0,3),(1,3),(3,2)],4) => 1
{{1,3,4},{2}} => [3,2,4,1] => [4,3,2,1] => ([],4) => 0
{{1,3},{2},{4}} => [3,2,1,4] => [2,3,1,4] => ([(0,3),(1,2),(2,3)],4) => 0
{{1,4},{2,3}} => [4,3,2,1] => [2,3,4,1] => ([(1,2),(2,3)],4) => 0
{{1},{2,3,4}} => [1,3,4,2] => [1,4,3,2] => ([(0,1),(0,2),(0,3)],4) => 1
{{1},{2,3},{4}} => [1,3,2,4] => [1,3,2,4] => ([(0,1),(0,2),(1,3),(2,3)],4) => 0
{{1},{2,4},{3}} => [1,4,3,2] => [1,3,4,2] => ([(0,2),(0,3),(3,1)],4) => 0
{{1},{2},{3,4}} => [1,2,4,3] => [1,2,4,3] => ([(0,3),(3,1),(3,2)],4) => 1
{{1},{2},{3},{4}} => [1,2,3,4] => [1,2,3,4] => ([(0,3),(2,1),(3,2)],4) => 0
{{1,2,3,4,5}} => [2,3,4,5,1] => [5,2,3,4,1] => ([(2,3),(3,4)],5) => 0
{{1,2,3,4},{5}} => [2,3,4,1,5] => [4,2,3,1,5] => ([(0,4),(1,4),(2,3),(3,4)],5) => 1
{{1,2,3,5},{4}} => [2,3,5,4,1] => [4,2,3,5,1] => ([(1,4),(2,3),(3,4)],5) => 0
{{1,2,3},{4,5}} => [2,3,1,5,4] => [3,2,1,5,4] => ([(0,3),(0,4),(1,3),(1,4),(2,3),(2,4)],5) => 3
{{1,2,3},{4},{5}} => [2,3,1,4,5] => [3,2,1,4,5] => ([(0,4),(1,4),(2,4),(4,3)],5) => 2
{{1,2,4},{3},{5}} => [2,4,3,1,5] => [3,2,4,1,5] => ([(0,4),(1,3),(2,3),(3,4)],5) => 1
{{1,2,5},{3,4}} => [2,5,4,3,1] => [3,2,4,5,1] => ([(1,4),(2,4),(4,3)],5) => 1
{{1,2},{3,4,5}} => [2,1,4,5,3] => [2,1,5,4,3] => ([(0,2),(0,3),(0,4),(1,2),(1,3),(1,4)],5) => 3
{{1,2},{3,4},{5}} => [2,1,4,3,5] => [2,1,4,3,5] => ([(0,3),(0,4),(1,3),(1,4),(3,2),(4,2)],5) => 2
{{1,2},{3,5},{4}} => [2,1,5,4,3] => [2,1,4,5,3] => ([(0,3),(0,4),(1,3),(1,4),(4,2)],5) => 2
{{1,2},{3},{4,5}} => [2,1,3,5,4] => [2,1,3,5,4] => ([(0,4),(1,4),(4,2),(4,3)],5) => 2
{{1,2},{3},{4},{5}} => [2,1,3,4,5] => [2,1,3,4,5] => ([(0,4),(1,4),(2,3),(4,2)],5) => 1
{{1,3,4,5},{2}} => [3,2,4,5,1] => [5,3,2,4,1] => ([(2,4),(3,4)],5) => 0
{{1,3,4},{2,5}} => [3,5,4,1,2] => [4,1,3,5,2] => ([(0,4),(1,2),(1,3),(3,4)],5) => 0
{{1,3,4},{2},{5}} => [3,2,4,1,5] => [4,3,2,1,5] => ([(0,4),(1,4),(2,4),(3,4)],5) => 2
{{1,3},{2,4},{5}} => [3,4,1,2,5] => [4,1,3,2,5] => ([(0,4),(1,2),(1,3),(2,4),(3,4)],5) => 1
{{1,3},{2},{4,5}} => [3,2,1,5,4] => [2,3,1,5,4] => ([(0,3),(0,4),(1,2),(2,3),(2,4)],5) => 2
{{1,3},{2},{4},{5}} => [3,2,1,4,5] => [2,3,1,4,5] => ([(0,4),(1,2),(2,4),(4,3)],5) => 1
{{1,4},{2,3},{5}} => [4,3,2,1,5] => [2,3,4,1,5] => ([(0,4),(1,2),(2,3),(3,4)],5) => 0
{{1},{2,3,4,5}} => [1,3,4,5,2] => [1,5,3,4,2] => ([(0,2),(0,3),(0,4),(4,1)],5) => 1
{{1},{2,3,4},{5}} => [1,3,4,2,5] => [1,4,3,2,5] => ([(0,1),(0,2),(0,3),(1,4),(2,4),(3,4)],5) => 1
{{1,5},{2,3},{4}} => [5,3,2,4,1] => [4,3,5,2,1] => ([(2,4),(3,4)],5) => 0
{{1},{2,3,5},{4}} => [1,3,5,4,2] => [1,4,3,5,2] => ([(0,1),(0,2),(0,3),(2,4),(3,4)],5) => 1
{{1},{2,3},{4,5}} => [1,3,2,5,4] => [1,3,2,5,4] => ([(0,1),(0,2),(1,3),(1,4),(2,3),(2,4)],5) => 2
{{1},{2,3},{4},{5}} => [1,3,2,4,5] => [1,3,2,4,5] => ([(0,2),(0,3),(2,4),(3,4),(4,1)],5) => 1
{{1,4},{2,5},{3}} => [4,5,3,1,2] => [3,1,5,4,2] => ([(0,3),(0,4),(1,2),(1,3),(1,4)],5) => 2
{{1,4},{2},{3,5}} => [4,2,5,1,3] => [5,4,2,1,3] => ([(2,4),(3,4)],5) => 0
{{1,4},{2},{3},{5}} => [4,2,3,1,5] => [3,4,2,1,5] => ([(0,4),(1,4),(2,3),(3,4)],5) => 1
{{1,5},{2,4},{3}} => [5,4,3,2,1] => [2,3,4,5,1] => ([(1,4),(3,2),(4,3)],5) => 0
{{1},{2,4,5},{3}} => [1,4,3,5,2] => [1,5,4,3,2] => ([(0,1),(0,2),(0,3),(0,4)],5) => 2
{{1},{2,4},{3,5}} => [1,4,5,2,3] => [1,5,2,4,3] => ([(0,3),(0,4),(4,1),(4,2)],5) => 1
{{1},{2,4},{3},{5}} => [1,4,3,2,5] => [1,3,4,2,5] => ([(0,2),(0,3),(1,4),(2,4),(3,1)],5) => 0
{{1,5},{2},{3,4}} => [5,2,4,3,1] => [3,4,5,2,1] => ([(2,3),(3,4)],5) => 0
{{1},{2,5},{3,4}} => [1,5,4,3,2] => [1,3,4,5,2] => ([(0,2),(0,4),(3,1),(4,3)],5) => 0
{{1},{2},{3,4,5}} => [1,2,4,5,3] => [1,2,5,4,3] => ([(0,4),(4,1),(4,2),(4,3)],5) => 2
{{1},{2},{3,4},{5}} => [1,2,4,3,5] => [1,2,4,3,5] => ([(0,3),(1,4),(2,4),(3,1),(3,2)],5) => 1
{{1},{2,5},{3},{4}} => [1,5,3,4,2] => [1,4,5,3,2] => ([(0,2),(0,3),(0,4),(4,1)],5) => 1
{{1},{2},{3,5},{4}} => [1,2,5,4,3] => [1,2,4,5,3] => ([(0,4),(3,2),(4,1),(4,3)],5) => 1
{{1},{2},{3},{4,5}} => [1,2,3,5,4] => [1,2,3,5,4] => ([(0,3),(3,4),(4,1),(4,2)],5) => 1
{{1},{2},{3},{4},{5}} => [1,2,3,4,5] => [1,2,3,4,5] => ([(0,4),(2,3),(3,1),(4,2)],5) => 0
{{1,2,3,4,5,6}} => [2,3,4,5,6,1] => [6,2,3,4,5,1] => ([(2,3),(3,5),(5,4)],6) => 0
{{1,2,3,4,5},{6}} => [2,3,4,5,1,6] => [5,2,3,4,1,6] => ([(0,5),(1,5),(2,3),(3,4),(4,5)],6) => 1
{{1,2,3,4,6},{5}} => [2,3,4,6,5,1] => [5,2,3,4,6,1] => ([(1,5),(2,3),(3,4),(4,5)],6) => 0
{{1,2,3,4},{5},{6}} => [2,3,4,1,5,6] => [4,2,3,1,5,6] => ([(0,5),(1,5),(2,3),(3,5),(5,4)],6) => 2
{{1,2,3,5},{4},{6}} => [2,3,5,4,1,6] => [4,2,3,5,1,6] => ([(0,5),(1,4),(2,3),(3,5),(5,4)],6) => 1
{{1,2,3,6},{4,5}} => [2,3,6,5,4,1] => [4,2,3,5,6,1] => ([(1,5),(2,3),(3,5),(5,4)],6) => 1
{{1,2,3},{4},{5},{6}} => [2,3,1,4,5,6] => [3,2,1,4,5,6] => ([(0,5),(1,5),(2,5),(3,4),(5,3)],6) => 2
{{1,2,4},{3},{5},{6}} => [2,4,3,1,5,6] => [3,2,4,1,5,6] => ([(0,5),(1,4),(2,4),(4,5),(5,3)],6) => 2
{{1,2,5},{3,4},{6}} => [2,5,4,3,1,6] => [3,2,4,5,1,6] => ([(0,5),(1,4),(2,4),(3,5),(4,3)],6) => 1
{{1,2,6},{3,5},{4}} => [2,6,5,4,3,1] => [3,2,4,5,6,1] => ([(1,5),(2,5),(3,4),(5,3)],6) => 1
{{1,2},{3},{4},{5},{6}} => [2,1,3,4,5,6] => [2,1,3,4,5,6] => ([(0,5),(1,5),(3,2),(4,3),(5,4)],6) => 1
{{1,3,4,5,6},{2}} => [3,2,4,5,6,1] => [6,3,2,4,5,1] => ([(2,5),(3,5),(5,4)],6) => 1
{{1,3,4,5},{2},{6}} => [3,2,4,5,1,6] => [5,3,2,4,1,6] => ([(0,5),(1,5),(2,4),(3,4),(4,5)],6) => 2
{{1,3,4},{2,5,6}} => [3,5,4,1,6,2] => [6,4,3,5,1,2] => ([(1,5),(2,5),(3,4)],6) => 0
{{1,3,4,6},{2},{5}} => [3,2,4,6,5,1] => [5,3,2,4,6,1] => ([(1,5),(2,4),(3,4),(4,5)],6) => 1
{{1,3,4},{2},{5},{6}} => [3,2,4,1,5,6] => [4,3,2,1,5,6] => ([(0,5),(1,5),(2,5),(3,5),(5,4)],6) => 3
{{1,3},{2,4,5},{6}} => [3,4,1,5,2,6] => [5,4,3,1,2,6] => ([(0,5),(1,5),(2,5),(3,4),(4,5)],6) => 2
{{1,3},{2,5},{4,6}} => [3,5,1,6,2,4] => [6,5,3,1,2,4] => ([(2,5),(3,4),(4,5)],6) => 0
{{1,3},{2,5},{4},{6}} => [3,5,1,4,2,6] => [4,5,3,1,2,6] => ([(0,5),(1,4),(2,3),(3,5),(4,5)],6) => 1
{{1,3},{2,6},{4,5}} => [3,6,1,5,4,2] => [4,5,3,6,1,2] => ([(0,5),(1,3),(2,4),(4,5)],6) => 0
{{1,3},{2},{4},{5},{6}} => [3,2,1,4,5,6] => [2,3,1,4,5,6] => ([(0,5),(1,3),(3,5),(4,2),(5,4)],6) => 1
{{1,4,5,6},{2,3}} => [4,3,2,5,6,1] => [6,3,4,2,5,1] => ([(2,5),(3,4),(4,5)],6) => 0
{{1,4,5},{2,3},{6}} => [4,3,2,5,1,6] => [5,3,4,2,1,6] => ([(0,5),(1,5),(2,5),(3,4),(4,5)],6) => 2
{{1,4,6},{2,3},{5}} => [4,3,2,6,5,1] => [5,3,4,2,6,1] => ([(1,5),(2,5),(3,4),(4,5)],6) => 1
{{1,4},{2,3},{5},{6}} => [4,3,2,1,5,6] => [2,3,4,1,5,6] => ([(0,5),(1,4),(2,5),(4,2),(5,3)],6) => 1
{{1,6},{2,3,4},{5}} => [6,3,4,2,5,1] => [5,4,6,3,2,1] => ([(3,5),(4,5)],6) => 0
{{1,5},{2,3},{4},{6}} => [5,3,2,4,1,6] => [4,3,5,2,1,6] => ([(0,5),(1,5),(2,4),(3,4),(4,5)],6) => 2
{{1,6},{2,3},{4,5}} => [6,3,2,5,4,1] => [4,3,5,6,2,1] => ([(2,5),(3,5),(5,4)],6) => 1
{{1,6},{2,3},{4},{5}} => [6,3,2,4,5,1] => [5,3,6,2,4,1] => ([(1,5),(2,4),(3,4),(3,5)],6) => 0
{{1,4,5,6},{2},{3}} => [4,2,3,5,6,1] => [6,4,2,3,5,1] => ([(2,5),(3,4),(4,5)],6) => 0
{{1,4,5},{2},{3},{6}} => [4,2,3,5,1,6] => [5,4,2,3,1,6] => ([(0,5),(1,5),(2,5),(3,4),(4,5)],6) => 2
{{1,4},{2},{3,5,6}} => [4,2,5,1,6,3] => [6,5,4,2,1,3] => ([(3,5),(4,5)],6) => 0
{{1,4},{2},{3,5},{6}} => [4,2,5,1,3,6] => [5,4,2,1,3,6] => ([(0,5),(1,5),(2,4),(3,4),(4,5)],6) => 2
{{1,4,6},{2},{3},{5}} => [4,2,3,6,5,1] => [5,4,2,3,6,1] => ([(1,5),(2,5),(3,4),(4,5)],6) => 1
{{1,4},{2},{3,6},{5}} => [4,2,6,1,5,3] => [5,6,4,2,1,3] => ([(1,5),(2,5),(3,4)],6) => 0
{{1,4},{2},{3},{5},{6}} => [4,2,3,1,5,6] => [3,4,2,1,5,6] => ([(0,5),(1,5),(2,3),(3,5),(5,4)],6) => 2
{{1,5,6},{2,4},{3}} => [5,4,3,2,6,1] => [6,3,4,5,2,1] => ([(3,4),(4,5)],6) => 0
{{1,5},{2,4},{3},{6}} => [5,4,3,2,1,6] => [2,3,4,5,1,6] => ([(0,5),(1,4),(2,5),(3,2),(4,3)],6) => 0
{{1,6},{2,4},{3},{5}} => [6,4,3,2,5,1] => [5,3,4,6,2,1] => ([(2,5),(3,4),(4,5)],6) => 0
{{1,5},{2},{3,4},{6}} => [5,2,4,3,1,6] => [3,4,5,2,1,6] => ([(0,5),(1,5),(2,3),(3,4),(4,5)],6) => 1
{{1,6},{2,5},{3,4}} => [6,5,4,3,2,1] => [2,3,4,5,6,1] => ([(1,5),(3,4),(4,2),(5,3)],6) => 0
{{1,6},{2},{3,4},{5}} => [6,2,4,3,5,1] => [5,4,6,2,3,1] => ([(1,5),(2,5),(3,4)],6) => 0
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Description
The interval resolution global dimension of a poset.
This is the cardinality of the longest chain of right minimal approximations by interval modules of an indecomposable module over the incidence algebra.
This is the cardinality of the longest chain of right minimal approximations by interval modules of an indecomposable module over the incidence algebra.
Map
permutation poset
Description
Sends a permutation to its permutation poset.
For a permutation $\pi$ of length $n$, this poset has vertices
$$\{ (i,\pi(i))\ :\ 1 \leq i \leq n \}$$
and the cover relation is given by $(w, x) \leq (y, z)$ if $w \leq y$ and $x \leq z$.
For example, the permutation $[3,1,5,4,2]$ is mapped to the poset with cover relations
$$\{ (2, 1) \prec (5, 2),\ (2, 1) \prec (4, 4),\ (2, 1) \prec (3, 5),\ (1, 3) \prec (4, 4),\ (1, 3) \prec (3, 5) \}.$$
For a permutation $\pi$ of length $n$, this poset has vertices
$$\{ (i,\pi(i))\ :\ 1 \leq i \leq n \}$$
and the cover relation is given by $(w, x) \leq (y, z)$ if $w \leq y$ and $x \leq z$.
For example, the permutation $[3,1,5,4,2]$ is mapped to the poset with cover relations
$$\{ (2, 1) \prec (5, 2),\ (2, 1) \prec (4, 4),\ (2, 1) \prec (3, 5),\ (1, 3) \prec (4, 4),\ (1, 3) \prec (3, 5) \}.$$
Map
to permutation
Description
Sends the set partition to the permutation obtained by considering the blocks as increasing cycles.
Map
Clarke-Steingrimsson-Zeng
Description
The Clarke-Steingrimsson-Zeng map sending descents to excedances.
This is the map $\Phi$ in [1, sec.3]. In particular, it satisfies
$$ (des, Dbot, Ddif, Res)\pi = (exc, Ebot, Edif, Ine)\Phi(\pi), $$
where
This is the map $\Phi$ in [1, sec.3]. In particular, it satisfies
$$ (des, Dbot, Ddif, Res)\pi = (exc, Ebot, Edif, Ine)\Phi(\pi), $$
where
- $des$ is the number of descents, St000021The number of descents of a permutation.,
- $exc$ is the number of (strict) excedances, St000155The number of exceedances (also excedences) of a permutation.,
- $Dbot$ is the sum of the descent bottoms, St000154The sum of the descent bottoms of a permutation.,
- $Ebot$ is the sum of the excedance bottoms,
- $Ddif$ is the sum of the descent differences, St000030The sum of the descent differences of a permutations.,
- $Edif$ is the sum of the excedance differences (or depth), St000029The depth of a permutation.,
- $Res$ is the sum of the (right) embracing numbers,
- $Ine$ is the sum of the side numbers.
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