Let \(\Delta \) be a plane field on a manifold \(M\) and let \(X,Y\) be two vector fields tangent to \(\Delta \). Show that if for some \(p\in M\) we have \(Y_p=0\) then \([X,Y]_p\in \Delta \).
Question
Math 6510 • Differentiable Manifolds
Fall 2013 • Question 4