Branches of forced oscillations for a class of implicit equations Involving the \Phi-Laplacian

We consider a class of parametric, implicit ordinary differential equations with a generalized $\Phi$-Laplacian type term and we study the structure of the set of forced oscillations in presence of a periodic forcing term. Under suitable assumptions we obtain global bifurcation results whose statements require only conditions involving the well-known Brouwer degree in Euclidean spaces.