Non-degenerate jump of Milnor numbers of surface singularities

Szymon Brzostowski, Tadeusz Krasiński, Justyna Walewska

The jump of the Milnor number of an isolated singularity $f_0$ is the minimal non-zero difference between the Milnor numbers of $f_0$ and one of its deformations $(f_s)$. We give a…