3 problems

Moussu–Pelletier–Sullivan conjecture. Foliations with non-exponential growth have trivial Godbillon–Vey class.

Let $M$ be a manifold without boundary and let ${\mathcal F}$ be a codimension-one $C^2$-foliation of $M$. Its Godbillon–Vey class is denoted by…

Let ${\mathcal F}$ be a codimension-one, $C^2$-foliation of a closed manifold $M$, and let … be its Godbillon–Vey class. Moussu–Pelletier–Sullivan conjecture. If…