Identifier
Mp00058: Perfect matchings —to permutation⟶ Permutations
Mp00252: Permutations —restriction⟶ Permutations
Mp00114: Permutations —connectivity set⟶ Binary words
Images
=>
Cc0012;cc-rep-0
[(1,2)]=>[2,1]=>[1]=> [(1,2),(3,4)]=>[2,1,4,3]=>[2,1,3]=>01 [(1,3),(2,4)]=>[3,4,1,2]=>[3,1,2]=>00 [(1,4),(2,3)]=>[4,3,2,1]=>[3,2,1]=>00 [(1,2),(3,4),(5,6)]=>[2,1,4,3,6,5]=>[2,1,4,3,5]=>0101 [(1,3),(2,4),(5,6)]=>[3,4,1,2,6,5]=>[3,4,1,2,5]=>0001 [(1,4),(2,3),(5,6)]=>[4,3,2,1,6,5]=>[4,3,2,1,5]=>0001 [(1,5),(2,3),(4,6)]=>[5,3,2,6,1,4]=>[5,3,2,1,4]=>0000 [(1,6),(2,3),(4,5)]=>[6,3,2,5,4,1]=>[3,2,5,4,1]=>0000 [(1,6),(2,4),(3,5)]=>[6,4,5,2,3,1]=>[4,5,2,3,1]=>0000 [(1,5),(2,4),(3,6)]=>[5,4,6,2,1,3]=>[5,4,2,1,3]=>0000 [(1,4),(2,5),(3,6)]=>[4,5,6,1,2,3]=>[4,5,1,2,3]=>0000 [(1,3),(2,5),(4,6)]=>[3,5,1,6,2,4]=>[3,5,1,2,4]=>0000 [(1,2),(3,5),(4,6)]=>[2,1,5,6,3,4]=>[2,1,5,3,4]=>0100 [(1,2),(3,6),(4,5)]=>[2,1,6,5,4,3]=>[2,1,5,4,3]=>0100 [(1,3),(2,6),(4,5)]=>[3,6,1,5,4,2]=>[3,1,5,4,2]=>0000 [(1,4),(2,6),(3,5)]=>[4,6,5,1,3,2]=>[4,5,1,3,2]=>0000 [(1,5),(2,6),(3,4)]=>[5,6,4,3,1,2]=>[5,4,3,1,2]=>0000 [(1,6),(2,5),(3,4)]=>[6,5,4,3,2,1]=>[5,4,3,2,1]=>0000 [(1,2),(3,4),(5,6),(7,8)]=>[2,1,4,3,6,5,8,7]=>[2,1,4,3,6,5,7]=>010101 [(1,3),(2,4),(5,6),(7,8)]=>[3,4,1,2,6,5,8,7]=>[3,4,1,2,6,5,7]=>000101 [(1,4),(2,3),(5,6),(7,8)]=>[4,3,2,1,6,5,8,7]=>[4,3,2,1,6,5,7]=>000101 [(1,5),(2,3),(4,6),(7,8)]=>[5,3,2,6,1,4,8,7]=>[5,3,2,6,1,4,7]=>000001 [(1,6),(2,3),(4,5),(7,8)]=>[6,3,2,5,4,1,8,7]=>[6,3,2,5,4,1,7]=>000001 [(1,7),(2,3),(4,5),(6,8)]=>[7,3,2,5,4,8,1,6]=>[7,3,2,5,4,1,6]=>000000 [(1,8),(2,3),(4,5),(6,7)]=>[8,3,2,5,4,7,6,1]=>[3,2,5,4,7,6,1]=>000000 [(1,8),(2,4),(3,5),(6,7)]=>[8,4,5,2,3,7,6,1]=>[4,5,2,3,7,6,1]=>000000 [(1,7),(2,4),(3,5),(6,8)]=>[7,4,5,2,3,8,1,6]=>[7,4,5,2,3,1,6]=>000000 [(1,6),(2,4),(3,5),(7,8)]=>[6,4,5,2,3,1,8,7]=>[6,4,5,2,3,1,7]=>000001 [(1,5),(2,4),(3,6),(7,8)]=>[5,4,6,2,1,3,8,7]=>[5,4,6,2,1,3,7]=>000001 [(1,4),(2,5),(3,6),(7,8)]=>[4,5,6,1,2,3,8,7]=>[4,5,6,1,2,3,7]=>000001 [(1,3),(2,5),(4,6),(7,8)]=>[3,5,1,6,2,4,8,7]=>[3,5,1,6,2,4,7]=>000001 [(1,2),(3,5),(4,6),(7,8)]=>[2,1,5,6,3,4,8,7]=>[2,1,5,6,3,4,7]=>010001 [(1,2),(3,6),(4,5),(7,8)]=>[2,1,6,5,4,3,8,7]=>[2,1,6,5,4,3,7]=>010001 [(1,3),(2,6),(4,5),(7,8)]=>[3,6,1,5,4,2,8,7]=>[3,6,1,5,4,2,7]=>000001 [(1,4),(2,6),(3,5),(7,8)]=>[4,6,5,1,3,2,8,7]=>[4,6,5,1,3,2,7]=>000001 [(1,5),(2,6),(3,4),(7,8)]=>[5,6,4,3,1,2,8,7]=>[5,6,4,3,1,2,7]=>000001 [(1,6),(2,5),(3,4),(7,8)]=>[6,5,4,3,2,1,8,7]=>[6,5,4,3,2,1,7]=>000001 [(1,7),(2,5),(3,4),(6,8)]=>[7,5,4,3,2,8,1,6]=>[7,5,4,3,2,1,6]=>000000 [(1,8),(2,5),(3,4),(6,7)]=>[8,5,4,3,2,7,6,1]=>[5,4,3,2,7,6,1]=>000000 [(1,8),(2,6),(3,4),(5,7)]=>[8,6,4,3,7,2,5,1]=>[6,4,3,7,2,5,1]=>000000 [(1,7),(2,6),(3,4),(5,8)]=>[7,6,4,3,8,2,1,5]=>[7,6,4,3,2,1,5]=>000000 [(1,6),(2,7),(3,4),(5,8)]=>[6,7,4,3,8,1,2,5]=>[6,7,4,3,1,2,5]=>000000 [(1,5),(2,7),(3,4),(6,8)]=>[5,7,4,3,1,8,2,6]=>[5,7,4,3,1,2,6]=>000000 [(1,4),(2,7),(3,5),(6,8)]=>[4,7,5,1,3,8,2,6]=>[4,7,5,1,3,2,6]=>000000 [(1,3),(2,7),(4,5),(6,8)]=>[3,7,1,5,4,8,2,6]=>[3,7,1,5,4,2,6]=>000000 [(1,2),(3,7),(4,5),(6,8)]=>[2,1,7,5,4,8,3,6]=>[2,1,7,5,4,3,6]=>010000 [(1,2),(3,8),(4,5),(6,7)]=>[2,1,8,5,4,7,6,3]=>[2,1,5,4,7,6,3]=>010000 [(1,3),(2,8),(4,5),(6,7)]=>[3,8,1,5,4,7,6,2]=>[3,1,5,4,7,6,2]=>000000 [(1,4),(2,8),(3,5),(6,7)]=>[4,8,5,1,3,7,6,2]=>[4,5,1,3,7,6,2]=>000000 [(1,5),(2,8),(3,4),(6,7)]=>[5,8,4,3,1,7,6,2]=>[5,4,3,1,7,6,2]=>000000 [(1,6),(2,8),(3,4),(5,7)]=>[6,8,4,3,7,1,5,2]=>[6,4,3,7,1,5,2]=>000000 [(1,7),(2,8),(3,4),(5,6)]=>[7,8,4,3,6,5,1,2]=>[7,4,3,6,5,1,2]=>000000 [(1,8),(2,7),(3,4),(5,6)]=>[8,7,4,3,6,5,2,1]=>[7,4,3,6,5,2,1]=>000000 [(1,8),(2,7),(3,5),(4,6)]=>[8,7,5,6,3,4,2,1]=>[7,5,6,3,4,2,1]=>000000 [(1,7),(2,8),(3,5),(4,6)]=>[7,8,5,6,3,4,1,2]=>[7,5,6,3,4,1,2]=>000000 [(1,6),(2,8),(3,5),(4,7)]=>[6,8,5,7,3,1,4,2]=>[6,5,7,3,1,4,2]=>000000 [(1,5),(2,8),(3,6),(4,7)]=>[5,8,6,7,1,3,4,2]=>[5,6,7,1,3,4,2]=>000000 [(1,4),(2,8),(3,6),(5,7)]=>[4,8,6,1,7,3,5,2]=>[4,6,1,7,3,5,2]=>000000 [(1,3),(2,8),(4,6),(5,7)]=>[3,8,1,6,7,4,5,2]=>[3,1,6,7,4,5,2]=>000000 [(1,2),(3,8),(4,6),(5,7)]=>[2,1,8,6,7,4,5,3]=>[2,1,6,7,4,5,3]=>010000 [(1,2),(3,7),(4,6),(5,8)]=>[2,1,7,6,8,4,3,5]=>[2,1,7,6,4,3,5]=>010000 [(1,3),(2,7),(4,6),(5,8)]=>[3,7,1,6,8,4,2,5]=>[3,7,1,6,4,2,5]=>000000 [(1,4),(2,7),(3,6),(5,8)]=>[4,7,6,1,8,3,2,5]=>[4,7,6,1,3,2,5]=>000000 [(1,5),(2,7),(3,6),(4,8)]=>[5,7,6,8,1,3,2,4]=>[5,7,6,1,3,2,4]=>000000 [(1,6),(2,7),(3,5),(4,8)]=>[6,7,5,8,3,1,2,4]=>[6,7,5,3,1,2,4]=>000000 [(1,7),(2,6),(3,5),(4,8)]=>[7,6,5,8,3,2,1,4]=>[7,6,5,3,2,1,4]=>000000 [(1,8),(2,6),(3,5),(4,7)]=>[8,6,5,7,3,2,4,1]=>[6,5,7,3,2,4,1]=>000000 [(1,8),(2,5),(3,6),(4,7)]=>[8,5,6,7,2,3,4,1]=>[5,6,7,2,3,4,1]=>000000 [(1,7),(2,5),(3,6),(4,8)]=>[7,5,6,8,2,3,1,4]=>[7,5,6,2,3,1,4]=>000000 [(1,6),(2,5),(3,7),(4,8)]=>[6,5,7,8,2,1,3,4]=>[6,5,7,2,1,3,4]=>000000 [(1,5),(2,6),(3,7),(4,8)]=>[5,6,7,8,1,2,3,4]=>[5,6,7,1,2,3,4]=>000000 [(1,4),(2,6),(3,7),(5,8)]=>[4,6,7,1,8,2,3,5]=>[4,6,7,1,2,3,5]=>000000 [(1,3),(2,6),(4,7),(5,8)]=>[3,6,1,7,8,2,4,5]=>[3,6,1,7,2,4,5]=>000000 [(1,2),(3,6),(4,7),(5,8)]=>[2,1,6,7,8,3,4,5]=>[2,1,6,7,3,4,5]=>010000 [(1,2),(3,5),(4,7),(6,8)]=>[2,1,5,7,3,8,4,6]=>[2,1,5,7,3,4,6]=>010000 [(1,3),(2,5),(4,7),(6,8)]=>[3,5,1,7,2,8,4,6]=>[3,5,1,7,2,4,6]=>000000 [(1,4),(2,5),(3,7),(6,8)]=>[4,5,7,1,2,8,3,6]=>[4,5,7,1,2,3,6]=>000000 [(1,5),(2,4),(3,7),(6,8)]=>[5,4,7,2,1,8,3,6]=>[5,4,7,2,1,3,6]=>000000 [(1,6),(2,4),(3,7),(5,8)]=>[6,4,7,2,8,1,3,5]=>[6,4,7,2,1,3,5]=>000000 [(1,7),(2,4),(3,6),(5,8)]=>[7,4,6,2,8,3,1,5]=>[7,4,6,2,3,1,5]=>000000 [(1,8),(2,4),(3,6),(5,7)]=>[8,4,6,2,7,3,5,1]=>[4,6,2,7,3,5,1]=>000000 [(1,8),(2,3),(4,6),(5,7)]=>[8,3,2,6,7,4,5,1]=>[3,2,6,7,4,5,1]=>000000 [(1,7),(2,3),(4,6),(5,8)]=>[7,3,2,6,8,4,1,5]=>[7,3,2,6,4,1,5]=>000000 [(1,6),(2,3),(4,7),(5,8)]=>[6,3,2,7,8,1,4,5]=>[6,3,2,7,1,4,5]=>000000 [(1,5),(2,3),(4,7),(6,8)]=>[5,3,2,7,1,8,4,6]=>[5,3,2,7,1,4,6]=>000000 [(1,4),(2,3),(5,7),(6,8)]=>[4,3,2,1,7,8,5,6]=>[4,3,2,1,7,5,6]=>000100 [(1,3),(2,4),(5,7),(6,8)]=>[3,4,1,2,7,8,5,6]=>[3,4,1,2,7,5,6]=>000100 [(1,2),(3,4),(5,7),(6,8)]=>[2,1,4,3,7,8,5,6]=>[2,1,4,3,7,5,6]=>010100 [(1,2),(3,4),(5,8),(6,7)]=>[2,1,4,3,8,7,6,5]=>[2,1,4,3,7,6,5]=>010100 [(1,3),(2,4),(5,8),(6,7)]=>[3,4,1,2,8,7,6,5]=>[3,4,1,2,7,6,5]=>000100 [(1,4),(2,3),(5,8),(6,7)]=>[4,3,2,1,8,7,6,5]=>[4,3,2,1,7,6,5]=>000100 [(1,5),(2,3),(4,8),(6,7)]=>[5,3,2,8,1,7,6,4]=>[5,3,2,1,7,6,4]=>000000 [(1,6),(2,3),(4,8),(5,7)]=>[6,3,2,8,7,1,5,4]=>[6,3,2,7,1,5,4]=>000000 [(1,7),(2,3),(4,8),(5,6)]=>[7,3,2,8,6,5,1,4]=>[7,3,2,6,5,1,4]=>000000 [(1,8),(2,3),(4,7),(5,6)]=>[8,3,2,7,6,5,4,1]=>[3,2,7,6,5,4,1]=>000000 [(1,8),(2,4),(3,7),(5,6)]=>[8,4,7,2,6,5,3,1]=>[4,7,2,6,5,3,1]=>000000 [(1,7),(2,4),(3,8),(5,6)]=>[7,4,8,2,6,5,1,3]=>[7,4,2,6,5,1,3]=>000000 [(1,6),(2,4),(3,8),(5,7)]=>[6,4,8,2,7,1,5,3]=>[6,4,2,7,1,5,3]=>000000 [(1,5),(2,4),(3,8),(6,7)]=>[5,4,8,2,1,7,6,3]=>[5,4,2,1,7,6,3]=>000000 [(1,4),(2,5),(3,8),(6,7)]=>[4,5,8,1,2,7,6,3]=>[4,5,1,2,7,6,3]=>000000 [(1,3),(2,5),(4,8),(6,7)]=>[3,5,1,8,2,7,6,4]=>[3,5,1,2,7,6,4]=>000000 [(1,2),(3,5),(4,8),(6,7)]=>[2,1,5,8,3,7,6,4]=>[2,1,5,3,7,6,4]=>010000 [(1,2),(3,6),(4,8),(5,7)]=>[2,1,6,8,7,3,5,4]=>[2,1,6,7,3,5,4]=>010000 [(1,3),(2,6),(4,8),(5,7)]=>[3,6,1,8,7,2,5,4]=>[3,6,1,7,2,5,4]=>000000 [(1,4),(2,6),(3,8),(5,7)]=>[4,6,8,1,7,2,5,3]=>[4,6,1,7,2,5,3]=>000000 [(1,5),(2,6),(3,8),(4,7)]=>[5,6,8,7,1,2,4,3]=>[5,6,7,1,2,4,3]=>000000 [(1,6),(2,5),(3,8),(4,7)]=>[6,5,8,7,2,1,4,3]=>[6,5,7,2,1,4,3]=>000000 [(1,7),(2,5),(3,8),(4,6)]=>[7,5,8,6,2,4,1,3]=>[7,5,6,2,4,1,3]=>000000 [(1,8),(2,5),(3,7),(4,6)]=>[8,5,7,6,2,4,3,1]=>[5,7,6,2,4,3,1]=>000000 [(1,8),(2,6),(3,7),(4,5)]=>[8,6,7,5,4,2,3,1]=>[6,7,5,4,2,3,1]=>000000 [(1,7),(2,6),(3,8),(4,5)]=>[7,6,8,5,4,2,1,3]=>[7,6,5,4,2,1,3]=>000000 [(1,6),(2,7),(3,8),(4,5)]=>[6,7,8,5,4,1,2,3]=>[6,7,5,4,1,2,3]=>000000 [(1,5),(2,7),(3,8),(4,6)]=>[5,7,8,6,1,4,2,3]=>[5,7,6,1,4,2,3]=>000000 [(1,4),(2,7),(3,8),(5,6)]=>[4,7,8,1,6,5,2,3]=>[4,7,1,6,5,2,3]=>000000 [(1,3),(2,7),(4,8),(5,6)]=>[3,7,1,8,6,5,2,4]=>[3,7,1,6,5,2,4]=>000000 [(1,2),(3,7),(4,8),(5,6)]=>[2,1,7,8,6,5,3,4]=>[2,1,7,6,5,3,4]=>010000 [(1,2),(3,8),(4,7),(5,6)]=>[2,1,8,7,6,5,4,3]=>[2,1,7,6,5,4,3]=>010000 [(1,3),(2,8),(4,7),(5,6)]=>[3,8,1,7,6,5,4,2]=>[3,1,7,6,5,4,2]=>000000 [(1,4),(2,8),(3,7),(5,6)]=>[4,8,7,1,6,5,3,2]=>[4,7,1,6,5,3,2]=>000000 [(1,5),(2,8),(3,7),(4,6)]=>[5,8,7,6,1,4,3,2]=>[5,7,6,1,4,3,2]=>000000 [(1,6),(2,8),(3,7),(4,5)]=>[6,8,7,5,4,1,3,2]=>[6,7,5,4,1,3,2]=>000000 [(1,7),(2,8),(3,6),(4,5)]=>[7,8,6,5,4,3,1,2]=>[7,6,5,4,3,1,2]=>000000 [(1,8),(2,7),(3,6),(4,5)]=>[8,7,6,5,4,3,2,1]=>[7,6,5,4,3,2,1]=>000000
Map
to permutation
Description
Returns the fixed point free involution whose transpositions are the pairs in the perfect matching.
Map
restriction
Description
The permutation obtained by removing the largest letter.
This map is undefined for the empty permutation.
Map
connectivity set
Description
The connectivity set of a permutation as a binary word.
According to [2], also known as the global ascent set.
The connectivity set is
$$C(\pi)=\{i\in [n-1] | \forall 1 \leq j \leq i < k \leq n : \pi(j) < \pi(k)\}.$$
For $n > 1$ it can also be described as the set of occurrences of the mesh pattern
$$([1,2], \{(0,2),(1,0),(1,1),(2,0),(2,1) \})$$
or equivalently
$$([1,2], \{(0,1),(0,2),(1,1),(1,2),(2,0) \}),$$
see [3].
The permutation is connected, when the connectivity set is empty.