Formal Poincaré-Dulac renormalization for holomorphic germs
Formal Poincaré-Dulac renormalization for holomorphic germs
In this revised version, applying a general renormalization procedure for formal self-maps, producing a formal normal form simpler than the classical Poincar\'e-Dulac normal form, we shall give a complete list of normal forms for bi-dimensional superattracting germs with non-vanishing quadratic term; in most cases, our normal forms will be the …