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Lie triple system central extensions of Lie algebras
Published 8 Oct 2010 in math.RT, math.KT, and math.RA | (1010.1760v1)
Abstract: Three kinds of universal central extension are considered for a perfect Lie algebra. More precisely, one can consider such a Lie algebra as a Lie triple system, or a Leibniz algebra and construct appropriate central extensions. We show that Lie triple system universal central extension is isomorphic either to Lie or Leibniz algebra universal central extension considered as a Lie triple system in appropriate way.
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