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InversePromotion from DyckPath ​

Inverse promotion of the Dyck path's two-row standard tableau, read back as a path.

DyckPath → DyckPathinverse

FindStat's Mp00143; the inverse is Promotion.

Called as CombinatorialMap(x, "InversePromotion"). The head's page has its examples.

Live

Explore

Each element of DyckPath at a size, and its image, applied in your browser; sizes past 7 are not offered.

Properties

Transport a statistic

Pick a statistic on DyckPath. 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 Mp00143

inverse promotion

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).

BijectionGraded mapas FindStat records them, checked by FindStat's contributors.

The inverse promotion of a Dyck path.
ObjectImage
[1,0][1,0]
[1,0,1,0][1,1,0,0]
[1,1,0,0][1,0,1,0]
[1,0,1,0,1,0][1,1,0,1,0,0]

Data from FindStat, the combinatorial statistic finder; the page at findstat.org/Mp00143 has the rest.