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Poisson Georges. Les châteaux de Philippe d'Orléans. In: Cahiers Saint Simon, n°34, 2006. Philippe d'Orléans. pp. 9-22

Let

B

be a quantum algebra possessing a semiclassical limit

A

. We show that under certain hypotheses

B^e

can be thought of as a deformation of the Poisson enveloping algebra of

A

, and we give a criterion for the Hochschild cohomology of

B

to be a deformation of the Poisson cohomology of

A

in the case that

B

is Koszul. We verify that condition for the algebra of

2\times 2

quantum matrices and calculate its Hochschild cohomology and the Poisson cohomology of its semiclassical limit

Hourcade Philippe, Poisson Georges. Échos. In: Cahiers Saint Simon, n°34, 2006. Philippe d'Orléans. pp. 119-123

Poisson Georges, Hourcade Philippe. Claude Lebedel. In: Cahiers Saint Simon, n°34, 2006. Philippe d'Orléans. p. 126

Poisson Georges, Hourcade Philippe. Claude Lebedel. In: Cahiers Saint Simon, n°34, 2006. Philippe d'Orléans. p. 126

Hourcade Philippe, Poisson Georges. Échos. In: Cahiers Saint Simon, n°34, 2006. Philippe d'Orléans. pp. 119-123

Hourcade Philippe, Poisson Georges. Echos. In: Cahiers Saint Simon, n°36, 2008. Eloquence de Saint-Simon. pp. 95-99

Hourcade Philippe, Poisson Georges. Echos. In: Cahiers Saint Simon, n°37, 2009. Mécènes et collectionneurs. pp. 107-110

Poisson Georges, Hourcade Philippe. Échos. In: Cahiers Saint Simon, n°32, 2004. L'oeuvre hors Mémoires. pp. 121-124

Hourcade Philippe, Poisson Georges. Echos. In: Cahiers Saint Simon, n°36, 2008. Eloquence de Saint-Simon. pp. 95-99