Isolating chains and chaotic dynamics in planar nonautonomous ODEs Original Research Article

We present a topological method for detecting complicated dynamics in nonautonomous periodic ODEʹs. The method is based on the notion of isolating chain. As an application we show the chaotic behaviour of processes generated by the equations in the complex plane View the MathML source, where k>3 is an even number and φ is close to 0.