Uniqueness in the Kashiwara-Vergne conjecture
Anton Alekseev, Emanuela Petracci
Abstract
We prove that a universal symmetric solution of the Kashiwara-Vergne conjecture is unique up to order one. in the Appendix by the second author, this result is used to show that solutions of the Kashiwara-Vergne conjecture for quadratic Lie algebras existing in the literature are not universal.
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