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A new approach to the word and conjugacy problems in the braid groups

Joan S. Birman, K. H. Ko, J. S. Lee

math.GTarXiv:math/9712211

Abstract

A new presentation of the n-string braid group Bn is studied. Using it, a new solution to the word problem in Bn is obtained which retains most of the desirable features of the Garside-Thurston solution, and at the same time makes possible certain computational improvements. We also give a related solution to the conjugacy problem, but the improvements in its complexity are not clear at this writing.

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