Qualitative Theory of Planar Differential Systems

by Dumortier, Freddy, Llibre, Jaume, Artés, Joan C.
Published 2006

Structurally Unstable Quadratic Vector Fields of Codimension One

by Artés, Joan C., Llibre, Jaume, Rezende, Alex C.
Published 2018

Geometric Configurations of Singularities of Planar Polynomial Differential Systems : A Global Classification in the Quadratic Case

by Artés, Joan C., Llibre, Jaume, Schlomiuk, Dana, Vulpe, Nicolae
Published 2021