Universal central extensions of twisted forms of split simple Lie algebras over rings

Details Universal central extensions of twisted forms of split simple Lie algebras over rings Universal central extensions of twisted forms of split simple Lie algebras over rings

2010-11-17

arxiv.org/abs/1011.4086v2

Journal of Algebra, 322 (2009), 1819-1829

Mathematics

Algebraic Geometry

Scientific paper

We give sufficient conditions for the descent construction to be the
universal central extension of a twisted form of a split simple Lie algebra
over a ring. In particular, the universal central extensions of twisted
multiloop Lie tori are obtained by the descent construction.

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