Abstract
A brief review is stated on a hypernormalization method of autonomous differential equations in the vicinity of an equilibrium. The formalization is obtained from the method of cohomology spectral sequences. We skip the technical concepts such that it can be accessible for a broad audience. Three normal form styles are demonstrated by computing three different and known first-level normal forms of Bogdanov–Takens singularity.
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The author would like to acknowledge Majid Gazor’s useful discussions.
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Gazor, H. Normal form of Bogdanov–Takens: styles and a hypernormalization method. Nonlinear Dyn 72, 499–505 (2013). https://doi.org/10.1007/s11071-012-0739-x
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DOI: https://doi.org/10.1007/s11071-012-0739-x