1 citations · 1 across the 2 of their papers we have counts for
3 papers
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.RA2003
Hopf-Galois systems and Kashiwara algebras
C. Grunspan
This article is made up with two parts. In the first part, we generalize to the case when objects are faithfully flat over the ground ring, the full equivalence between the notions…
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…