Abstract
We give a level-2 representation of the elliptic algebra \(U_{x,p} (\widehat{\mathfrak{s}\mathfrak{l}_2 })\) in terms of one free boson and one free fermion. We show that \(U_{x,p} (\widehat{\mathfrak{s}\mathfrak{l}}_2 )\)-modules have a natural direct sum decomposition into the irreducible (deformed) super-Virasoro modules associated with the coset \((\mathfrak{s}\mathfrak{l}_2 )_2 \oplus (\mathfrak{s}\mathfrak{l}_2 )_{r - 4} /(\mathfrak{s}\mathfrak{l}_2 )_{r - 2}\).
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Konno, H. Free field realization of the level-2 elliptic algebra \(U_{x,p} (\widehat{\mathfrak{s}\mathfrak{l}}_2 )*)\) . Czech J Phys 55, 1455–1460 (2005). https://doi.org/10.1007/s10582-006-0025-6
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DOI: https://doi.org/10.1007/s10582-006-0025-6