Level one Weyl modules for toroidal Lie algebras (Q2224501)

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Level one Weyl modules for toroidal Lie algebras
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    Level one Weyl modules for toroidal Lie algebras (English)
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    3 February 2021
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    The notion of Weyl modules for affine Lie algebras was introduced by \textit{V. Chari} and \textit{A. Pressley} [Represent. Theory 5, 191--223 (2001; Zbl 0989.17019)] In the present paper the author studies Weyl modules for toroidal Lie algebras and an affine analog of current algebras. He proves an isomorphism between the level one global Weyl module \(W_{\text{glob}}(\Lambda_0)\) over the toroidal Lie algebra \(\mathfrak{g}_{\text{tor}}\) and the twist of a module \(\mathbb{V}(0)\) by an automorphism, where \(\mathbb{V}(0)\) has been constructed in previous papers by other researchers. As a corollary he computes the characters of the level one local Weyl modules.
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    toroidal Lie algebra
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    Weyl module
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    character
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    vertex operator
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