NegateSigns

Every sign reversed: multiplication by the longest element −id of the hyperoctahedral group.

FindStatMp00244via SignedPermutation↗

NegateSigns(SignedPermutation)Every sign reversed.

Typed signatures

Type	Package	Applies
(signed_permutation) -> signed_permutation	combinatorics	always

Domain: Combinatorial maps

Details

• Takes a SignedPermutation and returns a SignedPermutation — a typed map, so a wrong carrier is a type error rather than a wrong answer.
• FindStat's Mp00244, "bar".

Examples

Basic #

the signed permutation $2\,\bar 3\,1$

live ↗

In$\mathrm{NegateSigns}({\operatorname{SignedPermutation}}([2, -3, 1]))$Out${\operatorname{SignedPermutation}}([-2, 3, -1])$

About

Examples	1
Crosswalk	FindStat