Toroidal Lie algebras and vertex representations
Toroidal Lie algebras and vertex representations
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DOI:
10.1007/bf00147350
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发表时间:
1990-09
影响因子:
0.5
通讯作者:
R. Moody;S. Rao;T. Yokonuma
中科院分区:
文献类型:
--
作者:
R. Moody;S. Rao;T. Yokonuma
The paper describes the theory of the toroidal Lie algebra, i.e. the Lie algebra of polynomial maps of a complex torus ℂ××ℂ×into a finite-dimensional simple Lie algebra g. We describe the universal central extension t of this algebra and give an abstract presentation for it in terms of generators and relations involving the extended Cartan matrix of g. Using this presentation and vertex operators we obtain a large class of integrable indecomposable representations of t in the case that g is of typeA, D,orE. The submodule structure of these indecomposable modules is described in terms of the ideal structure of a suitable commutative associative algebra.