On the use of blow up to study regularizations of singularities of piecewise smooth dynamical systems in ${\mathbb{R}}^3$

K. Uldall Kristiansen, S. J. Hogan

In this paper we use the blow up method of Dumortier and Roussarie \cite{dumortier_1991,dumortier_1993,dumortier_1996}, in the formulation due to Krupa and Szmolyan \cite{krupa_ext…