Abstract
Let M be a smooth connected Hausdorff manifold of dimension n. We denote by TpM the tangent space of M, in p of M, by tauM the fibre bundle of M and by TM , the total space of such fibre bundle. A vector field is a continuous map M to TpM which associates to each point p of M, a vector v(p) in TpM. Then a vector field is a section v : M to TpM. Sankaran presents a very interesting surve…