Titlebook: Limit Cycles of Differential Equations; Colin Christopher,Chengzhi Li Textbook 20071st edition Birkh?user Basel 2007 Abelian integral.Cent

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spotenzial. Datenverluste durch Hackerangriffe oder Viren, existenzbedrohende Betriebsunterbrechungen durch St?rungen der Informations- und Kommunikationstechnologie, Wirtschaftsspionage oder Information Warfare sind nur einige der Gefahren, die durch die weltweite Vernetzung drohen...Torsten Grzebi

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n a dedicated special network.Deals with security issues to .The Internet plays a significant and growing role in real-time industrial manufacturing, scheduling and management. A considerable research effort has led to the development of new technologies that make it possible to use the Internet for

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The Tangential Center-Focus Problemee . in terms of .. This is a very hard problem, but Arnold has suggested a “Weak Hilbert’s 16th problem” which seems far more tractable: to find a bound on the number of limit cycles which can bifurcate from a first-order perturbation of a Hamiltonian system, . where the Hamiltonian, ., is a polyno

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Holonomy and the Lotka-Volterra Systemood of an invariant curve. This object, roughly speaking, is the nonlinear analog to the monodromy of the solutions of a linear differential equation as they turn around a singular point. Alternatively, it can be thought of as a kind of Poincaré return map for foliations.

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Other Approachesponents of the center variety by finding their intersections with specific subsets of parameter space and then showing that the type of center is “rigid”. In the second approach, we try to see the consequences of a center on its bounding graphic. Monodromytype arguments play an implicit role in both