Moser theorem for volume forms
= Moser theorem for volume forms
{c}
On a <compact> <connected> <smooth manifold> without boundary, two positive <volume forms> for the same <orientation> are related by an <orientation>-preserving <diffeomorphism> exactly when their total integrals agree. A positive interpolation and <Cartan's magic formula> give the <smooth isotopy> realizing the equality.