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math.QA2006★ 44 cited
Quasi-Lie structure of twisted derivations of Laurent polynomials
Lionel Richard, Sergei Silvestrov
Hartwig, Larsson and the second author in [J. Algebra, 2005] defined a bracket on sigma-derivations of a commutative algebra. We show that this bracket preserves inner derivations,…
math.QA2004
Isomorphisms between quantum generalized Weyl algebras
Lionel Richard, Andrea Solotar
We study isomorphisms between generalized Weyl algebras, giving a complete answer to the quantum case of this problem for R=k[h].