Palavra-chave: NONSMOOTH DYNAMICAL SYSTEMS

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