Comment Comment by jlev1 There was an excellent Dance Your PhD video about representations of braid groups and faithfulness in 2017: https://www.youtube.com/watch?v=MASNukczu5AIf you look closely, you can find a mention of the n=4 Burau representation in it, and the fact that it "remains an open problem" to find elements of its kernel, i.e. to determine whether it is faithful. parent jlev1 3 months ago
If you look closely, you can find a mention of the n=4 Burau representation in it, and the fact that it "remains an open problem" to find elements of its kernel, i.e. to determine whether it is faithful.