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Yip ​

The set partition whose arcs, read as a rook placement, Yip's bijection psi carries to a set partition.

Yip(SetPartition)The set partition whose arcs, read as a rook placement, Yip's bijection psi carries to a set partition.
Typed signatures
TypePackageApplies
(set_partition) -> set_partitioncombinatoricsalways

Domain: Combinatorial maps

Details
  • Takes a SetPartition and returns a SetPartition — a typed map, so a wrong carrier is a type error rather than a wrong answer.
  • FindStat's Mp00220. The inverse of InverseYip.

Examples

Basic #

the set partition {1,3}∣{2}∣{4}\{1,3\} \mid \{2\} \mid \{4\}

live ↗
InYip(SetPartition⁡([[1,3],[2],[4]]))\mathrm{Yip}({\operatorname{SetPartition}}([[1, 3], [2], [4]]))OutSetPartition⁡([[1],[2,3],[4]]){\operatorname{SetPartition}}([[1], [2, 3], [4]])
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Examples1
CrosswalkFindStat