2 papers
math.RT2007
sl(2)-Trivial Deformations of Vect_{Pol}(R)-Modules of Symbols
Mabrouk Ben Ammar, Maha Boujelbene
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 rest…
math.RT2007
Cohomology of the Lie Superalgebra of Contact Vector Fields on and Deformations of the Superspace of Symbols
Imed Basdouri, Mabrouk Ben Ammar, Nizar Ben Fraj +2
Following Feigin and Fuchs, we compute the first cohomology of the Lie superalgebra of contact vector fields on the (1,1)-dimensional real superspace with coeffici…