Formal rigidity of the Witt and Virasoro Algebra [PDF]
Alice FialowskiThe formal rigidity of the Witt and Virasoro algebras was first establishedView original: http://arxiv.org/abs/1202.3132
by the author in [4]. The proof was based on some earlier results of the author
and Goncharowa, and was not presented there. In this paper we give an
elementary proof of these facts.
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