Palavra-chave: NORMAL FORM

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