There are **233 maps**
in the database. There are possibly some more waiting for verification.

**Alternating sign matrices**(8 maps)

Mp00001Alternating sign matrices ⟶ Semistandard tableaux

to semistandard tableau via monotone triangles

Mp00002Alternating sign matrices ⟶ Permutations

to left key permutation

Mp00003Alternating sign matrices ⟶ Alternating sign matrices

rotate counterclockwise

Mp00004Alternating sign matrices ⟶ Alternating sign matrices

rotate clockwise

Mp00005Alternating sign matrices ⟶ Alternating sign matrices

transpose

Mp00006Alternating sign matrices ⟶ Alternating sign matrices

gyration

Mp00007Alternating sign matrices ⟶ Dyck paths

to Dyck path

Mp00098Alternating sign matrices ⟶ Perfect matchings

link pattern

**Binary trees**(14 maps)

Mp00008Binary trees ⟶ Ordered trees

to complete tree

Mp00009Binary trees ⟶ Binary trees

left rotate

Mp00010Binary trees ⟶ Ordered trees

to ordered tree: left child = left brother

Mp00011Binary trees ⟶ Graphs

to graph

Mp00012Binary trees ⟶ Dyck paths

to Dyck path: up step, left tree, down step, right tree

Mp00013Binary trees ⟶ Posets

to poset

Mp00014Binary trees ⟶ Permutations

to 132-avoiding permutation

Mp00015Binary trees ⟶ Ordered trees

to ordered tree: right child = right brother

Mp00016Binary trees ⟶ Binary trees

left-right symmetry

Mp00017Binary trees ⟶ Permutations

to 312-avoiding permutation

Mp00018Binary trees ⟶ Binary trees

left border symmetry

Mp00019Binary trees ⟶ Binary trees

right rotate

Mp00020Binary trees ⟶ Dyck paths

to Tamari-corresponding Dyck path

Mp00141Binary trees ⟶ Dyck paths

pruning number to logarithmic height

**Binary words**(10 maps)

Mp00096Binary words ⟶ Binary words

Foata bijection

Mp00097Binary words ⟶ Integer compositions

delta morphism

Mp00104Binary words ⟶ Binary words

reverse

Mp00105Binary words ⟶ Binary words

complement

Mp00135Binary words ⟶ Binary words

rotate front-to-back

Mp00136Binary words ⟶ Binary words

rotate back-to-front

Mp00158Binary words ⟶ Binary words

alternating inverse

Mp00178Binary words ⟶ Integer compositions

to composition

Mp00200Binary words ⟶ Binary words

twist

Mp00224Binary words ⟶ Binary words

runsort

**Cores**(2 maps)

**Dyck paths**(42 maps)

Mp00023Dyck paths ⟶ Permutations

to non-crossing permutation

Mp00024Dyck paths ⟶ Permutations

to 321-avoiding permutation

Mp00025Dyck paths ⟶ Permutations

to 132-avoiding permutation

Mp00026Dyck paths ⟶ Ordered trees

to ordered tree

Mp00027Dyck paths ⟶ Integer partitions

to partition

Mp00028Dyck paths ⟶ Dyck paths

reverse

Mp00029Dyck paths ⟶ Binary trees

to binary tree: left tree, up step, right tree, down step

Mp00030Dyck paths ⟶ Dyck paths

zeta map

Mp00031Dyck paths ⟶ Permutations

to 312-avoiding permutation

Mp00032Dyck paths ⟶ Dyck paths

inverse zeta map

Mp00033Dyck paths ⟶ Standard tableaux

to two-row standard tableau

Mp00034Dyck paths ⟶ Binary trees

to binary tree: up step, left tree, down step, right tree

Mp00035Dyck paths ⟶ Alternating sign matrices

to alternating sign matrix

Mp00093Dyck paths ⟶ Binary words

to binary word

Mp00099Dyck paths ⟶ Dyck paths

bounce path

Mp00100Dyck paths ⟶ Integer compositions

touch composition

Mp00101Dyck paths ⟶ Dyck paths

decomposition reverse

Mp00102Dyck paths ⟶ Integer compositions

rise composition

Mp00103Dyck paths ⟶ Dyck paths

peeling map

Mp00118Dyck paths ⟶ Dyck paths

swap returns and last descent

Mp00119Dyck paths ⟶ Permutations

to 321-avoiding permutation (Krattenthaler)

Mp00120Dyck paths ⟶ Dyck paths

Lalanne-Kreweras involution

Mp00121Dyck paths ⟶ Dyck paths

Cori-Le Borgne involution

Mp00122Dyck paths ⟶ Dyck paths

Elizalde-Deutsch bijection

Mp00123Dyck paths ⟶ Dyck paths

Barnabei-Castronuovo involution

Mp00124Dyck paths ⟶ Dyck paths

Adin-Bagno-Roichman transformation

Mp00129Dyck paths ⟶ Permutations

to 321-avoiding permutation (Billey-Jockusch-Stanley)

Mp00132Dyck paths ⟶ Dyck paths

switch returns and last double rise

Mp00137Dyck paths ⟶ Alternating sign matrices

to symmetric ASM

Mp00138Dyck paths ⟶ Set partitions

to noncrossing partition

Mp00140Dyck paths ⟶ Binary trees

logarithmic height to pruning number

Mp00142Dyck paths ⟶ Dyck paths

promotion

Mp00143Dyck paths ⟶ Dyck paths

inverse promotion

Mp00146Dyck paths ⟶ Perfect matchings

to tunnel matching

Mp00199Dyck paths ⟶ Dyck paths

prime Dyck path

Mp00201Dyck paths ⟶ Permutations

Ringel

Mp00222Dyck paths ⟶ Dyck paths

peaks-to-valleys

Mp00227Dyck paths ⟶ Dyck paths

Delest-Viennot-inverse

Mp00228Dyck paths ⟶ Dyck paths

reflect parallelogram polyomino

Mp00229Dyck paths ⟶ Dyck paths

Delest-Viennot

Mp00232Dyck paths ⟶ Posets

parallelogram poset

Mp00233Dyck paths ⟶ Skew partitions

skew partition

**Finite Cartan types**(1 maps)

Mp00148Finite Cartan types ⟶ Posets

to root poset

**Gelfand-Tsetlin patterns**(6 maps)

Mp00036Gelfand-Tsetlin patterns ⟶ Semistandard tableaux

to semistandard tableau

Mp00078Gelfand-Tsetlin patterns ⟶ Gelfand-Tsetlin patterns

Schuetzenberger involution

Mp00210Gelfand-Tsetlin patterns ⟶ Gelfand-Tsetlin patterns

promotion

Mp00211Gelfand-Tsetlin patterns ⟶ Gelfand-Tsetlin patterns

inverse promotion

Mp00212Gelfand-Tsetlin patterns ⟶ Gelfand-Tsetlin patterns

inverse cycle

Mp00213Gelfand-Tsetlin patterns ⟶ Gelfand-Tsetlin patterns

cycle

**Graphs**(9 maps)

Mp00037Graphs ⟶ Integer partitions

to partition of connected components

Mp00111Graphs ⟶ Graphs

complement

Mp00117Graphs ⟶ Graphs

Ore closure

Mp00147Graphs ⟶ Graphs

square

Mp00152Graphs ⟶ Integer compositions

Laplacian multiplicities

Mp00154Graphs ⟶ Graphs

core

Mp00156Graphs ⟶ Graphs

line graph

Mp00157Graphs ⟶ Graphs

connected complement

Mp00203Graphs ⟶ Graphs

cone

**Integer compositions**(11 maps)

Mp00038Integer compositions ⟶ Integer compositions

reverse

Mp00039Integer compositions ⟶ Integer compositions

complement

Mp00040Integer compositions ⟶ Integer partitions

to partition

Mp00041Integer compositions ⟶ Integer compositions

conjugate

Mp00094Integer compositions ⟶ Binary words

to binary word

Mp00133Integer compositions ⟶ Integer compositions

delta morphism

Mp00172Integer compositions ⟶ Integer compositions

rotate back to front

Mp00173Integer compositions ⟶ Integer compositions

rotate front to back

Mp00180Integer compositions ⟶ Skew partitions

to ribbon

Mp00184Integer compositions ⟶ Graphs

to threshold graph

Mp00231Integer compositions ⟶ Dyck paths

bounce path

**Integer partitions**(8 maps)

Mp00042Integer partitions ⟶ Standard tableaux

initial tableau

Mp00043Integer partitions ⟶ Dyck paths

to Dyck path

Mp00044Integer partitions ⟶ Integer partitions

conjugate

Mp00045Integer partitions ⟶ Standard tableaux

reading tableau

Mp00095Integer partitions ⟶ Binary words

to binary word

Mp00179Integer partitions ⟶ Skew partitions

to skew partition

Mp00202Integer partitions ⟶ Integer partitions

first row removal

Mp00230Integer partitions ⟶ Dyck paths

parallelogram polyomino

**Lattices**(4 maps)

**Ordered trees**(7 maps)

Mp00046Ordered trees ⟶ Graphs

to graph

Mp00047Ordered trees ⟶ Posets

to poset

Mp00048Ordered trees ⟶ Ordered trees

left-right symmetry

Mp00049Ordered trees ⟶ Binary trees

to binary tree: left brother = left child

Mp00050Ordered trees ⟶ Binary trees

to binary tree: right brother = right child

Mp00051Ordered trees ⟶ Dyck paths

to Dyck path

Mp00139Ordered trees ⟶ Binary trees

Zeilberger's Strahler bijection

**Parking functions**(6 maps)

Mp00052Parking functions ⟶ Parking functions

to non-decreasing parking function

Mp00053Parking functions ⟶ Permutations

to car permutation

Mp00054Parking functions ⟶ Integer compositions

to inverse des composition

Mp00055Parking functions ⟶ Permutations

to labelling permutation

Mp00056Parking functions ⟶ Dyck paths

to Dyck path

Mp00057Parking functions ⟶ Integer compositions

to touch composition

**Perfect matchings**(8 maps)

Mp00058Perfect matchings ⟶ Permutations

to permutation

Mp00092Perfect matchings ⟶ Set partitions

to set partition

Mp00113Perfect matchings ⟶ Perfect matchings

reverse

Mp00116Perfect matchings ⟶ Perfect matchings

Kasraoui-Zeng

Mp00144Perfect matchings ⟶ Perfect matchings

rotation

Mp00145Perfect matchings ⟶ Perfect matchings

inverse rotation

Mp00150Perfect matchings ⟶ Dyck paths

to Dyck path

Mp00165Perfect matchings ⟶ Perfect matchings

Chen Deng Du Stanley Yan

**Permutations**(37 maps)

Mp00059Permutations ⟶ Standard tableaux

Robinson-Schensted insertion tableau

Mp00060Permutations ⟶ Integer partitions

Robinson-Schensted tableau shape

Mp00061Permutations ⟶ Binary trees

to increasing tree

Mp00062Permutations ⟶ Permutations

Lehmer-code to major-code bijection

Mp00063Permutations ⟶ Alternating sign matrices

to alternating sign matrix

Mp00064Permutations ⟶ Permutations

reverse

Mp00065Permutations ⟶ Posets

permutation poset

Mp00066Permutations ⟶ Permutations

inverse

Mp00067Permutations ⟶ Permutations

Foata bijection

Mp00068Permutations ⟶ Permutations

Simion-Schmidt map

Mp00069Permutations ⟶ Permutations

complement

Mp00070Permutations ⟶ Standard tableaux

Robinson-Schensted recording tableau

Mp00071Permutations ⟶ Integer compositions

descent composition

Mp00072Permutations ⟶ Binary trees

binary search tree: left to right

Mp00073Permutations ⟶ Permutations

major-index to inversion-number bijection

Mp00086Permutations ⟶ Permutations

first fundamental transformation

Mp00087Permutations ⟶ Permutations

inverse first fundamental transformation

Mp00088Permutations ⟶ Permutations

Kreweras complement

Mp00089Permutations ⟶ Permutations

Inverse Kreweras complement

Mp00090Permutations ⟶ Permutations

cycle-as-one-line notation

Mp00108Permutations ⟶ Integer partitions

cycle type

Mp00109Permutations ⟶ Binary words

descent word

Mp00114Permutations ⟶ Binary words

connectivity set

Mp00126Permutations ⟶ Permutations

cactus evacuation

Mp00127Permutations ⟶ Dyck paths

left-to-right-maxima to Dyck path

Mp00130Permutations ⟶ Binary words

descent tops

Mp00131Permutations ⟶ Binary words

descent bottoms

Mp00149Permutations ⟶ Permutations

Lehmer code rotation

Mp00151Permutations ⟶ Set partitions

to cycle type

Mp00159Permutations ⟶ Permutations

Demazure product with inverse

Mp00160Permutations ⟶ Graphs

graph of inversions

Mp00170Permutations ⟶ Signed permutations

to signed permutation

Mp00175Permutations ⟶ Permutations

inverse Foata bijection

Mp00204Permutations ⟶ Integer partitions

LLPS

Mp00208Permutations ⟶ Lattices

lattice of intervals

Mp00209Permutations ⟶ Posets

pattern poset

Mp00223Permutations ⟶ Permutations

runsort

**Plane partitions**(1 maps)

Mp00177Plane partitions ⟶ Plane partitions

transpose

**Posets**(7 maps)

Mp00074Posets ⟶ Graphs

to graph

Mp00110Posets ⟶ Integer partitions

Greene-Kleitman invariant

Mp00125Posets ⟶ Posets

dual poset

Mp00195Posets ⟶ Lattices

order ideals

Mp00198Posets ⟶ Graphs

The incomparability graph of a poset.

Mp00205Posets ⟶ Lattices

maximal antichains

Mp00206Posets ⟶ Lattices

antichains of maximal size

**Semistandard tableaux**(6 maps)

Mp00075Semistandard tableaux ⟶ Permutations

reading word permutation

Mp00076Semistandard tableaux ⟶ Gelfand-Tsetlin patterns

to Gelfand-Tsetlin pattern

Mp00077Semistandard tableaux ⟶ Integer partitions

shape

Mp00107Semistandard tableaux ⟶ Semistandard tableaux

catabolism

Mp00214Semistandard tableaux ⟶ Posets

subcrystal

Mp00225Semistandard tableaux ⟶ Integer partitions

weight

**Set partitions**(17 maps)

Mp00079Set partitions ⟶ Integer partitions

shape

Mp00080Set partitions ⟶ Permutations

to permutation

Mp00091Set partitions ⟶ Set partitions

rotate increasing

Mp00112Set partitions ⟶ Set partitions

complement

Mp00115Set partitions ⟶ Set partitions

Kasraoui-Zeng

Mp00128Set partitions ⟶ Integer compositions

to composition

Mp00164Set partitions ⟶ Set partitions

Chen Deng Du Stanley Yan

Mp00171Set partitions ⟶ Set partitions

intertwining number to dual major index

Mp00174Set partitions ⟶ Set partitions

dual major index to intertwining number

Mp00176Set partitions ⟶ Set partitions

rotate decreasing

Mp00215Set partitions ⟶ Set partitions

Wachs-White

Mp00216Set partitions ⟶ Set partitions

inverse Wachs-White

Mp00217Set partitions ⟶ Set partitions

Wachs-White-rho

Mp00218Set partitions ⟶ Set partitions

inverse Wachs-White-rho

Mp00219Set partitions ⟶ Set partitions

inverse Yip

Mp00220Set partitions ⟶ Set partitions

Yip

Mp00221Set partitions ⟶ Set partitions

conjugate

**Signed permutations**(10 maps)

Mp00161Signed permutations ⟶ Signed permutations

reverse

Mp00162Signed permutations ⟶ Signed permutations

inverse

Mp00163Signed permutations ⟶ Permutations

permutation

Mp00166Signed permutations ⟶ Integer partitions

even cycle type

Mp00167Signed permutations ⟶ Signed permutations

inverse Kreweras complement

Mp00168Signed permutations ⟶ Signed permutations

Kreweras complement

Mp00169Signed permutations ⟶ Integer partitions

odd cycle type

Mp00188Signed permutations ⟶ Signed permutations

complement

Mp00190Signed permutations ⟶ Signed permutations

Foata-Han

Mp00194Signed permutations ⟶ Signed permutations

Foata-Han inverse

**Skew partitions**(8 maps)

Mp00181Skew partitions ⟶ Integer compositions

row lengths

Mp00182Skew partitions ⟶ Integer partitions

outer shape

Mp00183Skew partitions ⟶ Integer partitions

inner shape

Mp00185Skew partitions ⟶ Posets

cell poset

Mp00186Skew partitions ⟶ Integer partitions

dominating partition

Mp00187Skew partitions ⟶ Skew partitions

conjugate

Mp00189Skew partitions ⟶ Skew partitions

rotate

Mp00192Skew partitions ⟶ Lattices

dominating sublattice

**Standard tableaux**(11 maps)

Mp00081Standard tableaux ⟶ Permutations

reading word permutation

Mp00082Standard tableaux ⟶ Gelfand-Tsetlin patterns

to Gelfand-Tsetlin pattern

Mp00083Standard tableaux ⟶ Integer partitions

shape

Mp00084Standard tableaux ⟶ Standard tableaux

conjugate

Mp00085Standard tableaux ⟶ Standard tableaux

Schützenberger involution

Mp00106Standard tableaux ⟶ Standard tableaux

catabolism

Mp00134Standard tableaux ⟶ Binary words

descent word

Mp00153Standard tableaux ⟶ Standard tableaux

inverse promotion

Mp00155Standard tableaux ⟶ Standard tableaux

promotion

Mp00207Standard tableaux ⟶ Integer compositions

horizontal strip sizes

Mp00226Standard tableaux ⟶ Standard tableaux

row-to-column-descents