Palavra-chave: NONSMOOTH DYNAMICAL SYSTEMS

SINGULARITY ASYMPTOTIC STABILITY SYNCHRONIZATION SINGULAR PERTURBATION BIFURCATION LIMIT CYCLE REGULARIZATION SLOW MANIFOLD SLIDING VECTOR FIELD CENTER NORMAL FORM AVERAGING BROWER THEORY IMPLICIT DIFFERENTIAL EQUATIONS TWOFOLD CYCLE POLICYCLE DULAC PROBLEM PERIODIC SOLUTIONS FILIPPOV SYSTEMS SHILNIKOV PROBLEM ATTRACTOR TOPOLOGICAL EQUIVALENCE STRUCTURAL STABILITY SOLUTIONS AMBIQUITIES OF SOLUTIONS PERIODIC ORBIT HAMILTONIAN REVERSIBILITY T-SINGULARITY FOLD-FOLD STABILITY SINGULARIDADE IMPLICIT DIFFERENTIAL EQUATION