Logarithmic Jacobian ideals, quasi-ordinary hypersurfaces and equisingularity

Pedro D. González Pérez

Let $(S,0)\subset ({\mathbb{C}}^{d+1},0)$ be an irreducible germ of hypersurface. The germ $(S,0)$ is quasi-ordinary if $(S,0)$ has a finite projection to $({\mathbb{C}}^d,0)$ which…