A Thom Isotopy Theorem for nonproper semialgebraic maps

Luis Renato Gonçalves Dias, Giovanny Snaider Barrera Ramos

We prove a version of the Thom Isotopy Theorem for nonproper semialgebraic maps $f:X\to {\mathbb{R}}^m$, where $X\subset {\mathbb{R}}^n$ is a semialgebraic set and $f$ is…