2017/01/20 by Kamila da Silva Andrade, Mike R. Jeffrey, Andrade, Kamila da Silva +5
Mathematics · Physics and Astronomy · #37G10 #37G20 #Advanced Differential Equations and Dynamical Systems #Advanced Differential Geometry Research #Chaos control and synchronization #Dynamical Systems (math.DS) #FOS: Mathematics
paper · pdf · doi:10.48550/arxiv.1701.05857
openalex publication_date 2017/01/20 · openalex created_date 2017/02/03 · openalex updated_date 2026/07/28
In a smooth dynamical system, a homoclinic connection is a closed orbit returning to a saddle equilibrium. Under perturbation, homoclinics are associated with bifurcations of periodic orbits, and with chaos in higher dimensions. Homoclinic connections in nonsmooth systems are complicated by their interaction with discontinuities in their vector fields. A connection may involve a regular saddle outside a discontinuity set, or a pseudo-saddle on a discontinuity set, with segments of the connection allowed to cross or slide along the discontinuity. Even the simplest case, that of connection to a regular saddle that hits a discontinuity as a parameter is varied, is surprisingly complex. Bifurcation diagrams are presented here for non-resonant saddles in the plane, including an example in a forced pendulum.