Analysis of the reconnection process in nontwist cubic maps

英文摘要：

The reconnection process in the dynamics of cubic nontwist maps, introduced in [3], is studied. The present paper extends the work presented in [8]. As in that work, in order to describe the route to reconnection of the involved Poincaré--Birkhoff chains or dimerised chains we investigate an approximate interpolating Hamiltonian of the map under study revealing again that the scenario of reconnection of cubic nontwist maps is different from that occurring in the dynamics of quadratic nontwist maps.