Finite-dimensional Lie Subalgebras of the Weyl Algebra
Journal of Lie Theory, Tome 16 (2006) no. 3, pp. 427-454

Voir la notice de l'article provenant de la source Heldermann Verlag

We classify up to isomorphism all finite-dimensional Lie algebras that can be realised as Lie subalgebras of the complex Weyl algebra $A_1$. The list we obtain turns out to be countable and, for example, the only non-solvable Lie algebras with this property are: $\frak{sl}(2)$, $\frak{sl}(2)\times{\bf C}$ and $\frak{sl}(2)\ltimes{\cal H}_3$. We then give several different characterisations, normal forms and isotropy groups for the action of ${\rm Aut}(A_1)\times {\rm Aut}(\frak{sl}(2))$ on a class of realisations of $\frak{sl}(2)$ in $A_1$.
Classification : 16S32, 17B60
Mots-clés : Finite-dimensional Lie subalgebras, Weyl algebra, embeddings

Michel Rausch de Traubenberg  1   ; Marcus J. Slupinski  2   ; Adrian Tanasa  3

1 Lab. de Physique Théorique, CNRS UMR 7085, Université Louis Pasteur, 3 rue de l'Université, 67084 Strasbourg, France
2 Institut de Recherches en Mathématique Avancée, Université Louis Pasteur, 7 rue R. Descartes, 67084 Strasbourg, France
3 Lab. Mathématiques Informatique Applications, Université de Haute Alsace, Faculté de Sciences et Techniques, 4 rue des Frères Lumières, 68093 Mulhouse, France
Michel Rausch de Traubenberg; Marcus J. Slupinski; Adrian Tanasa. Finite-dimensional Lie Subalgebras of the Weyl Algebra. Journal of Lie Theory, Tome 16 (2006) no. 3, pp. 427-454. http://geodesic.mathdoc.fr/item/JOLT_2006_16_3_a1/
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     author = {Michel Rausch de Traubenberg and Marcus J. Slupinski and Adrian Tanasa},
     title = {Finite-dimensional {Lie} {Subalgebras} of the {Weyl} {Algebra}},
     journal = {Journal of Lie Theory},
     pages = {427--454},
     year = {2006},
     volume = {16},
     number = {3},
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