2 problems

Let $\b X$ be a formal curve with associated numerical monoid … For a numerical monoid, let the associated numerical monoid of a blowup be the numerical monoid corresponding to its…

Let $f$ and $g$ be germs in the convergent power series ring $\mathbb C\\{\mathbf{x}\\}$, with $f(\mathbf{0})=g(\mathbf{0})=0$. Two germs are contact equivalent at the origin if on…