Center Manifold Dynamics in Randomly Coupled Oscillators and in Cochlea

Abstract

In dynamical systems theory, a fixed point of the activity is called nonhyperbolic if the linearization of the system around the fixed point has at least one eigenvalue with zero real part. The center manifold existence theorem guarantees the local existence of an invariant subspace of the activity, known as a center manifold, around nonhyperbolic fixed points. A growing number of theoretical and experimental studies suggest that neural systems utilize dynamics on center manifolds to display complex, nonlinear behavior and to flexibly adapt to wide-ranging sensory input parameters. In this thesis, I will present two lines of research exploring nonhyperbolicity in neural dynamics

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