doubleSigma: Double generator

View source: R/braids.R

doubleSigmaR Documentation

Double generator

Description

Generator \sigma_{s,t} in the Birman-Ko-Lee new presentation. It twists the strands s and t while going over all other strands (for t=s+1, this is \sigma_s).

Usage

doubleSigma(n, s, t)

Arguments

n

number of strands, integer >=2

s, t

indices of two strands, s < t

Value

A braid object.

Examples

doubleSigma(5, 1, 3)

braids documentation built on May 29, 2024, 11:56 a.m.