Palavra-chave: DYNAMICAL SYSTEMS

PIECEWISE SMOOTH DIFFERENTIAL EQUATIONS CHAOS OPTICS CENTER FOLIATION ZADEH S EXTENSION STABILITY MEMBERSHIP FUNCTIONS COHERENCE ANALYSIS NONLINEAR MODELS FOLIATIONS ZADEH'S EXTENSIO NORMAL FORMS COMPUTATIONAL NEUROSCIENCE RICCI FLOW MOTONEURON MODELS CONTACT MANIFOLDS Q-CONTACT MANIFOLDS PARTIALLY HYPERBOLIC DIFFEOMORPHISMS FUZZY DIFFERENTIAL EQUATIONS STRUCTURAL STABILITY WEINSTEIN CONJECTURE FUZZY SETS POINCARE-HOPF THEOREM PERIODIC ORBITS DIFFERENTIAL EQUATIONS FUZZY MODELLING SOUND SYNTHESIS SMOOTHNESS ATTRACTORS