2 problems

Let $f\colon (\mathbb{C}^n,0)\to(\mathbb{C}^{n+1},0)$ be a stable proper frontal map germ of corank $1$, with Legendrian lift $\tilde f$. Define Ishikawa's indices by … Here square…

Let $f\colon (\mathbb{K},S)\to(\mathbb{K}^2,0)$ be a frontal multi-germ, and let $\mu_{\mathscr{F}}(f)$ denote its frontal Milnor number, defined by replacing smooth stabilisations…