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Products of conjugacy classes in a free group: a counterexample

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Partially supported by National Science Foundation grant MDS 84 00882 and by the Mathematical Sciences Research Institute, Berkeley

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Gersten, S.M. Products of conjugacy classes in a free group: a counterexample. Math Z 192, 167–181 (1986). https://doi.org/10.1007/BF01179420

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