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arxiv: 1205.4191 · v1 · pith:3YB55ZCFnew · submitted 2012-05-18 · 🧮 math.RT

Finite-dimensional representations of twisted hyper loop algebras

classification 🧮 math.RT
keywords algebrasmodulesloophypertwistedfinite-dimensionalsimpleweyl
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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.

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