isPermutationBraid {braids}

Whether a braid is a permutation braid

Description

Checks whether a braid is a permutation braid, that is, a positive braid where any two strands cross at most one, and positively.

Usage

isPermutationBraid(braid)

Arguments

braid

a braid object

Value

A Boolean value.

Examples

braid <- mkBraid(4, c(2, -3, 3))
isPermutationBraid(braid)