Characterization of ${\mathbb{A}}^1$-Milnor numbers of small rank

C-Y. Jean Chan, Thomas Hagedorn, Joel Louwsma +1

The ${\mathbb{A}}^1$-Milnor number of a polynomial map is a quadratic enrichment of the classical Milnor number, defined as the local ${\mathbb{A}}^1$-Brouwer degree of the gradient. W…