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sl(2)-Trivial Deformations of VectPol(R)-Modules of Symbols
2008
Symmetry, Integrability and Geometry: Methods and Applications
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We consider the action of Vect_Pol(R) by Lie derivative on the spaces of symbols of differential operators. We study the deformations of this action that become trivial once restricted to sl(2). Necessary and sufficient conditions for integrability of infinitesimal deformations are given.
doi:10.3842/sigma.2008.065
fatcat:4h2t5dtoxbejbpr5pfqujpcwvi