Derivations on triplet W-algebras W_{p+,p-} are built by refining Tsuchiya-Wood Frobenius homomorphisms, extending Adamovic-Milas properties, inducing sl2 symmetry naturally, and yielding Aut(SW(m)) = PSL2(C) x Z2 for the superalgebra case.
arXiv:1101.0803[math.QA]
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Derivations on the triplet $W$-algebras with $\mathfrak{sl}_2$-symmetry
Derivations on triplet W-algebras W_{p+,p-} are built by refining Tsuchiya-Wood Frobenius homomorphisms, extending Adamovic-Milas properties, inducing sl2 symmetry naturally, and yielding Aut(SW(m)) = PSL2(C) x Z2 for the superalgebra case.