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math.DG1998
Projectively equivariant symbol calculus
P. B. A. Lecomte, V. Yu. Ovsienko
The spaces of linear differential operators on acting on tensor densities of degree and the space of functions on which are polynomial on t…
math.DG1998
On the cohomology of sl(m+1,R) acting on differential operators and sl(m+1,R)-equivariant symbol
P. B. A. Lecomte
One computes the cohomology of the projective embedding of sl(m+1,R) acting on the differential operators on densities on R^m of various weights. This cohomology is non vanishing o…