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- Institut Élie Cartan de LorraineFR3 papers
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Showing math.SGShow all
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math.SG2007
Strongly r-matrix induced tensors, Koszul cohomology, and arbitrary-dimensional quadratic Poisson cohomology
Mourad Ammar, Guy Kass, Mohsen Masmoudi +1
We introduce the concept of strongly -matrix induced ({\small SRMI}) Poisson structure, report on the relation of this property with the stabilizer dimension of the considered q…
math.SG2006
Formal Poisson cohomology of twisted -matrix induced structures
Mourad Ammar, Norbert Poncin
Quadratic Poisson tensors of the Dufour-Haraki classification read as a sum of an -matrix induced structure twisted by a (small) compatible exact quadratic tensor. An appropriat…
math.SG2005
On a general approach to the formal cohomology of quadratic Poisson structures
Mohsen Masmoudi, Norbert Poncin
We propose a general approach to the formal Poisson cohomology of -matrix induced quadratic structures, we apply this device to compute the cohomology of structure 2 of the Dufo…