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InverseGlaisherFranklin ​

The inverse of GlaisherFranklin: repeated parts merge into doubled parts, and a leftover part splits into copies of its odd part.

InverseGlaisherFranklin(IntegerPartition)The inverse of GlaisherFranklin: repeated parts merge into doubled parts, and a leftover part splits into copies of its odd part.
Typed signatures
TypePackageApplies
(integer_partition) -> integer_partitioncombinatoricsalways

Domain: Combinatorial maps

Details
  • Takes a IntegerPartition and returns a IntegerPartition — a typed map, so a wrong carrier is a type error rather than a wrong answer.
  • FindStat's Mp00313. It sends the number of distinct repeated part sizes to the number of distinct even part sizes.

Examples

Basic #

the partition 4+2+14 + 2 + 1

live ↗
InInverseGlaisherFranklin(IntegerPartition⁡([4,2,1]))\mathrm{InverseGlaisherFranklin}({\operatorname{IntegerPartition}}([4, 2, 1]))OutIntegerPartition⁡([1,1,1,1,1,1,1]){\operatorname{IntegerPartition}}([1, 1, 1, 1, 1, 1, 1])
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