34C05  Location of integral curves, singular points, limit cycles


34C07  Theory of limit cycles of polynomial and analytic vector fields (existence, uniqueness, bounds, Hilbert's 16th problem and ramifications)


34C08  Connections with real algebraic geometry (fewnomials, desingularization, zeros of Abelian integrals, etc.)


34C10  Oscillation theory, zeros, disconjugacy and comparison theory


34C11  Growth, boundedness, comparison of solutions


34C12  Monotone systems


34C14  Symmetries, invariants


34C15  Nonlinear oscillations, coupled oscillators


34C20  Transformation and reduction of equations and systems, normal forms


34C23  Bifurcation [See mainly 37Gxx]


34C25  Periodic solutions


34C26  Relaxation oscillations


34C27  Almost periodic solutions


34C28  Complex behavior, chaotic systems [See mainly 37Dxx]


34C29  Averaging method


34C30  Manifolds of solutions


34C37  Homoclinic and heteroclinic solutions


34C40  Equations and systems on manifolds


34C41  Equivalence, asymptotic equivalence


34C45  Method of integral manifolds


34C55  Hysteresis


34C60  Applications


34C99  None of the above, but in this section

