Palavra-chave: NORMAL FORM

REGULARIZATION DISCONTINUOUOS VECTOR FIELD BIFURCACAO CAMPO DE VETORES REVERSIVEIS SINGULARIDADES CONJUNTO ALGEBRICO DIFEOMORFISMO REVERSIVEL INVOLUTION STRUCTURAL STABILITY DIFFERENTIAL FORM SINGULARITY PERIODIC ORBIT REVERSIBILITY HAMILTONIAN NON-SMOOTH VECTOR FIELDS BIFURCATION VECTOR FIELD HOMOCLINIC ORBIT RESONANCE NONSMOOTH DYNAMICAL SYSTEMS CENTER SYMBOLIC COMPUTATION EQUIVARIANT SYSTEM REVERSIBILIDADE