Palavra-chave: SINGULARITY

LIMIT CYCLE VECTOR FIELD CLOSED ORBIT CAMPO DE VETORES NON-SMOOTH VECTOR FIELDS CONLEY INDEX DIFFERENTIAL FORM FINISMO ROBERTO ALAJMO STABILITY HAMILTONIAN FOLD-FOLD BIFURCATION SIGNED SOLUTIONS REGULARIZATION SIMILARITY RELAY SYSTEM APOCALIPSE CYCLE IMPASSE SLIDING VECTOR FIELD TWOFOLD NORMAL FORM ATTRACTOR FIXED POINT THEOREMS STRUCTURAL STABILITY ARRIVA LA FINE DEL MONDO FIM DO MUNDO INVOLUTION DISCONTINUOUS VECTOR FIELD DIVERGENT DIAGRAM DISCONTINUOUS DIFFERENTIAL EQUATIONS IMPLICIT DIFFERENTIAL EQUATIONS REVERSIBILITY VERSAL UNFOLDING ELLIPTIC BOUNDARY VALUE PROBLEMS NONLINEAR ELLIPTIC BOUNDARY VALUE PROBLEMS NUMERICAL SOLUTION CENTER POROUS MEDIA RESONANCE NONSMOOTH DYNAMICAL SYSTEMS SINGULAR PERTURBATION BASIN OF ATTRACTION TOPOLOGICAL INVARIANT PERIODIC ORBIT ASYMPTOTIC STABILITY