JUST 发表于 2025-3-25 04:17:04

0075-8434 nsions.Generalizes the classical theory of Gevrey asymptoticThe purpose of these lecture notes is to develop a theory of asymptotic expansions for functions involving two variables, while at the same time using functions involving one variable and functions of the quotient of these two variables. Su

放牧 发表于 2025-3-25 08:23:04

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preservative 发表于 2025-3-25 13:18:32

,Zufallsgrößen und Verteilungen,he classical theory of asymptotic expansions uniform in a full neighborhood of a turning point. In the present chapter, we generalize this concept to composite expansions and thus to expansions valid on quasi-sectors with vertex at a turning point.

不真 发表于 2025-3-25 17:44:09

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永久 发表于 2025-3-25 23:31:07

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下垂 发表于 2025-3-26 03:09:40

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剥削 发表于 2025-3-26 05:10:09

,A Theorem of Ramis–Sibuya Type, the associated formal series . and . are the same.Differently from the classical theory, the differences on the intersections of the .-domains are . whereas the differences on the intersections of the η-domains are ., ., . > 0. In the neighborhood of the origin, we therefore do necessarily not have a classical Gevrey expansion.

疲惫的老马 发表于 2025-3-26 08:53:24

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痛打 发表于 2025-3-26 15:56:03

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花费 发表于 2025-3-26 19:05:47

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查看完整版本: Titlebook: Composite Asymptotic Expansions; Augustin Fruchard,Reinhard Schäfke Book 2013 Springer-Verlag Berlin Heidelberg 2013 Gevrey expansions.com