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This tag is used to refer to mathematical/probabilistic/statistical modeling questions, usually this tag is used to ask about questions that are related with the mathematical formalism of the model instead of the correctness of a specific model in practice.
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Examples of ODEs with complex constant coefficients and applications to physics?
A standard/classic example is a model for tippe top inversion. This model is a linear ODE with constant complex coefficients: $$
\ddot{z} + i \alpha \dot{z} + \beta \dot{z} + i \gamma z + \delta z = …