Universal central extensions of braided crossed modules in Lie algebras

Published 26 Nov 2019 in math.RA | (1911.11400v1)

Abstract: In this paper, we give a natural braiding on the universal central extension of a crossed module of Lie algebras with a given braiding and construct the universal central extension of a braided crossed module of Lie algebras, showing that, when one of the constructions exists, both exist and coincide.

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