La solution unique de l'èquation différentielle de Liouville.
La variété des équations surstables
Lamé operators with projective octahedral and icosahedral monodromies
Linearizability of a polynomial system
Liouvillian first integrals of differential equations
In this paper we generalize to any dimension and codimension some theorems about existence of Liouvillian solutions or first integrals proved by M. Singer in Liouvillian first integrals of differential equations (1992) for first order differential equations.