Dulac's Problem and of the Focus Center on Two-Dimensional Manifolds
Generic bifurcations and equivalence relations in piecewise smooth vector fields
Asymptotic behavior of the Hibert number in polynomial and piecewise polynomial pl...
Continuous or piecewise smooth dynamical systems on 2 and 3 dimensional manifolds.
Cyclicity and local structural stability of piecewise vector fields
Singular perturbation of codimension-3 singularities of planar piecewise smooth ve...