Higher order normal modes

27 Jul 2020  ·  Gaeta Giuseppe, Walcher Sebastian ·

Normal modes are intimately related to the quadratic approximation of a potential at its hyperbolic equilibria. Here we extend the notion to the case where the Taylor expansion for the potential at a critical point starts with higher order terms, and show that such an extension shares some of the properties of standard normal modes... Some symmetric examples are considered in detail. read more

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Dynamical Systems Mathematical Physics Mathematical Physics