Palavra-chave: SINGULAR PERTURBATION

CRITICAL POINT DISCONTINUOUS VECTOR FIELD SLOW MANIFOLD SINGULARITY CAMPO DE VETORES IMPASSE NONSMOOTH DYNAMICAL SYSTEMS SYNCHRONIZATION REGULARIZATION ALGEBRAIC VARIETIES NON-SMOOTH VECTOR FIELDS SLIDING VECTOR FIELD FENICHEL THEORY MULTIPLE TIME SCALES REVERSIBILITY CONSTRAINED SYSTEMS MULTIPLE TIME SCALE