34Cxx
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34Cxx Qualitative theory [See also 37XX] {Info & Stats}
 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 theory  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][See also 37Gxx]  34C25 Periodic solutions
 34C26 Relaxation oscillations
 34C27
Almost periodic solutionsAlmost and pseudoalmost periodic solutions  34C28 Complex behavior, chaotic systems
[See mainly 37Dxx][See also 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 manifoldsInvariant manifolds  34C46 Multifrequency systems
 34C55 Hysteresis
 34C60
ApplicationsQualitative investigation and simulation of models  34C99 None of the above, but in this section