Formulas for Residues of Type Camacho-Sad and applications

In this paper we give formulas for the sum of residues of type Camacho-Sad of a $p$-dimensional foliation ${\mathcal{F}}$, relative to an invariant analytic subvariety $V$. As application, in context of projective foliations, we obtain a formula that relates the sum these residues with the degree and other characteristics of the invariant subvariety.