Abstract
A new method to compute normal forms of vector-field singularities is proposed. Normal forms for some degenerate singularities of vector fields are computed. These normal forms are simpler than those known as Arnold-Takens normal form. Parameters in the normal forms are uniquely determined from the original singularity in the category of (jets of) coordinate transformations.
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Ushiki, S. Normal forms for singularities of vector fields. Japan J. Appl. Math. 1, 1–37 (1984). https://doi.org/10.1007/BF03167860
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DOI: https://doi.org/10.1007/BF03167860