| doubleSigma | R Documentation |
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).
doubleSigma(n, s, t)
n |
number of strands, integer |
s, t |
indices of two strands, |
A braid object.
doubleSigma(5, 1, 3)
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