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Quasi-positivity and recognition of products of conjugacy classes in free groups. (arXiv:1808.03291v1 [math.GR]) http://arxiv.org/abs/1808.03291
Quasi-positivity and recognition of products of conjugacy classes in free groups. (arXiv:1808.03291v1 [math.GR]) http://arxiv.org/abs/1808.03291