Palavra-chave: NORMAL FORM

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