Extensions between finite-dimensional simple modules over a generalized current Lie algebra

Details Extensions between finite-dimensional simple modules over a generalized current Lie algebra Extensions between finite-dimensional simple modules over a generalized current Lie algebra

2009-08-26

arxiv.org/abs/0908.3738v2

Mathematics

Representation Theory

16 pages; added a remark on a work by Chari and Greenstein

Scientific paper

We calculate the first extension groups for finite-dimensional simple modules
over an arbitrary generalized current Lie algebra, which includes the case of
loop Lie algebras and their multivariable analogs.

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