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Representations of infinite-dimensional algebras and conformal field theory: from $N=2$ to $\widehat{sl}(2\vert1)$
Teoretičeskaâ i matematičeskaâ fizika, Tome 112 (1997) no. 2, pp. 195-240 Cet article a éte moissonné depuis la source Math-Net.Ru

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We review a number of constructions, realized in bosonic and $N=2$ strings, whith relate the affine Lie algebra $\widehat{sl}(2)$, affine superalgebra $\widehat {sl}(2|1)$, and the superconformal $N=2$ algebra. 
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A. M. Semikhatov. Representations of infinite-dimensional algebras and conformal field theory: from $N=2$ to $\widehat{sl}(2\vert1)$. Teoretičeskaâ i matematičeskaâ fizika, Tome 112 (1997) no. 2, pp. 195-240. http://geodesic.mathdoc.fr/item/TMF_1997_112_2_a1/

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