TwoRowTableau from DyckPath
The standard tableau of shape (n, n) with the positions of the up steps in its first row and of the down steps in its second.
FindStat's Mp00033. Injective; the same tableau Promotion and InversePromotion act on.
Called as CombinatorialMap(x, "TwoRowTableau"). The head's page has its examples.
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Properties
Transport a statistic
Pick a statistic on StandardTableau. Its distribution over the images of DyckPath at each size is computed, and compared with the 171 statistics on DyckPath: those that share it are the ones the map sends it to, as far as the sizes computed show.
FindStat Mp00033
to two-row standard tableau
Matched by value: our map agrees with FindStat's image on each of the 196 rows of size at most 6 we can read (0 unread; its table has 1200 rows).
InjectionGraded mapas FindStat records them, checked by FindStat's contributors.
| Object | Image |
|---|---|
[1,0] | [[1],[2]] |
[1,0,1,0] | [[1,3],[2,4]] |
[1,1,0,0] | [[1,2],[3,4]] |
[1,0,1,0,1,0] | [[1,3,5],[2,4,6]] |
Data from FindStat, the combinatorial statistic finder; the page at findstat.org/Mp00033 has the rest.