The study of periodic orbits in piecewise continuous differential systems
Piecewise smooth vector fields: Closing Lemmas, shifts and horseshoe dynamics.
Minimal sets of piecewise differential systems in dimension 3
Invariant sets for piecewise smooth differential equations defined on two dimensio...
Qualitative theory of ordinary differential equations: integrability, periodic orb...
Closing lemmas and shifts for piecewise smooth vector fields