im a graduate,i major in nonlinear dynamics.my mentor gives me a task about the diffusion of the net trap in hamilton system.it refers to an orbit which near a KAM tori will linger a long time in its neighborhood.the popular method(adsbygoogle = window.adsbygoogle || []).push({});

is to portray the diffusion relation which is referred to <r^2>~t^a.but in my opinion,this system is chaotic so the probability method should be a better path to describe it.i want to deduce the evolution equation of PDF(probability density function)in a general hamilton system,do someone help me?if it is difficulty to generate the equation,welcome to your idea and method about how to describe the the diffusion of the net trap better.thank u!

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# Net trap in stickiness effect

Can you offer guidance or do you also need help?

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