  A Maslov cycle is a singular variety in the lagrangian grassmannian L(V) of a
symplectic vector space V consisting of all lagrangian subspaces having nonzero
intersection with a fixed one. Givental has shown that a Maslov cycle is a
Legendre singularity, i.e. the projection of a smooth conic lagrangian
submanifold S in the cotangent bundle of L(V). We show here that S is the
wavefront set of a Fourier integral distribution which is "evaluation at 0 of
the quantizations".
