Mathematics – Quantum Algebra
Scientific paper
2000-11-08
Mathematics
Quantum Algebra
17 pages, LaTeX
Scientific paper
The space of symbols of differential operators on a smooth manifold (i.e., the space of symmetric contravariant tensor fields) is naturally a module over the Lie algebra of vector fields. We study, in the case of $\bf R^n$ with $n\geq2$, multi-parameter formal deformations of this module. The space of linear differential operators on $\bf R^n$ provides an important class of such formal deformations; we show, however, that the whole space of deformations is much larger.
Agrebaoui Boujemaa
Ammar Faouzi
Ovsienko Valentin
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