EXULT 发表于 2025-3-25 03:29:30

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

拍翅 发表于 2025-3-25 09:34:30

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单独 发表于 2025-3-25 14:38:07

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寄生虫 发表于 2025-3-25 18:13:42

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Parameter 发表于 2025-3-25 23:00:56

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

内阁 发表于 2025-3-26 00:56:26

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失败主义者 发表于 2025-3-26 06:17:22

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太空 发表于 2025-3-26 10:38:01

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

撤退 发表于 2025-3-26 15:21:27

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.

植物学 发表于 2025-3-26 18:54:51

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
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查看完整版本: Titlebook: Limit Cycles of Differential Equations; Colin Christopher,Chengzhi Li Textbook 20071st edition Birkhäuser Basel 2007 Abelian integral.Cent