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arXiv · 0711.3799

Descent constructions for central extensions of infinite dimensional Lie algebras

Arturo Pianzola·Daniel Prelat·Jie Sun
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Abstract

We use Galois descent to construct central extensions of twisted forms of split simple Lie algebras over rings. These types of algebras arise naturally in the construction of Extended Affine Lie Algebras. The construction also gives information about the structure of the group of automorphisms of such algebras.

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Arturo Pianzola, Daniel Prelat, Jie Sun. 2007-11-23. Descent constructions for central extensions of infinite dimensional Lie algebras. https://arxiv.org/abs/0711.3799

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