Extensions between finite-dimensional simple modules over a generalized current Lie algebra
Representation Theory
2009-08-30 v2 Quantum Algebra
Abstract
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.
Cite
@article{arxiv.0908.3738,
title = {Extensions between finite-dimensional simple modules over a generalized current Lie algebra},
author = {Ryosuke Kodera},
journal= {arXiv preprint arXiv:0908.3738},
year = {2009}
}
Comments
16 pages; added a remark on a work by Chari and Greenstein