The Existence of Periodic Orbits and Invariant Tori for Some 3-Dimensional Quadratic Systems
نویسندگان
چکیده
We use the normal form theory, averaging method, and integral manifold theorem to study the existence of limit cycles in Lotka-Volterra systems and the existence of invariant tori in quadratic systems in ℝ(3).
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ورودعنوان ژورنال:
دوره 2014 شماره
صفحات -
تاریخ انتشار 2014