most citedQuantizations of the Witt algebra and of simple Lie algebras in characteristic p

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math.QA2003★ 1 cited

Quantizations of the Witt algebra and of simple Lie algebras in characteristic p

Cyril Grunspan

We first quantize the Witt algebra in characteristic 0. Then, we consider the reduction modulo p of our formulas. This gives polynomial deformations of the restricted envelopping a…

math.QA2002

Quantum torsors

Cyril Grunspan

This text gives some results about quantum torsors. Our starting point is an old reformulation of torsors recalled recently by Kontsevich. We propose an unification of the definiti…