English

Finite-dimensional representations of twisted hyper loop algebras

Representation Theory 2015-04-14 v1

Abstract

We investigate the category of finite-dimensional representations of twisted hyper loop algebras, i.e., the hyperalgebras associated to twisted loop algebras over finite-dimensional simple Lie algebras. The main results are the classification of the irreducible modules, the definition of the universal highest-weight modules, called the Weyl modules, and, under a certain mild restriction on the characteristic of the ground field, a proof that the simple modules and the Weyl modules for the twisted hyper loop algebras are isomorphic to appropriate simple and Weyl modules for the non-twisted hyper loop algebras, respectively, via restriction of the action.

Keywords

Cite

@article{arxiv.1205.4191,
  title  = {Finite-dimensional representations of twisted hyper loop algebras},
  author = {Angelo Bianchi and Adriano Moura},
  journal= {arXiv preprint arXiv:1205.4191},
  year   = {2015}
}
R2 v1 2026-06-21T21:06:19.811Z