curettage 发表于 2025-3-25 03:53:31

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罗盘 发表于 2025-3-25 08:18:43

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龙虾 发表于 2025-3-25 13:34:46

V. M. Babichchtsänderungsgesetz 2004 mit den Änderungen der Sexualdelikte und den neuen Delikten gegen unbare Zahlungsmittel. Sie geht auf die neueste Rechtsprechung ein, z.B. auf die des OGH zur Beamteneigenschaft beliehener Unternehmer, und berücksichtigt die neueste Literatur. Trotz komplizierter Neuerungen

PAGAN 发表于 2025-3-25 19:27:45

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爱哭 发表于 2025-3-25 21:13:36

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忧伤 发表于 2025-3-26 00:55:09

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异教徒 发表于 2025-3-26 07:36:08

Equations with Rapidly Oscillating Solutions,, the equations of elasticity, the Schrödinger equation, the Dirac equation, and others. There are also nonlinear equations having analogous solutions. Interest in these solutions is becoming immense in theoretical and mathematical physics (the short-wave approximation, the high-frequency approximat

摘要 发表于 2025-3-26 11:47:23

,Asymptotic Expansion as , → ∞ of the Solutions of Exterior Boundary Value Problems for Hyperbolic Equations and Quasiclassical Approximations,roblem . where . is a strictly hyperbolic . matrix of differential operators of order ., υ and ϕ are vector functions with . components (they will be called simply functions from here on), and . is a (./2) x . matrix of differential operators of order no higher than . — 1. From the conditions . form

antiandrogen 发表于 2025-3-26 16:02:18

Semiclassical Asymptotics of Eigenfunctions,ns and boundary value problems for them. The spectrum in such problems, depending on the configuration of the domain in which the equation is considered and on the properties of the coefficients of the equation, turns out to be both discrete and continuous. A situation is possible in which both comp

BLOT 发表于 2025-3-26 18:16:51

The Boundary Layer,otic behavior of solutions of some boundary value problems for partial differential equations. The problems considered here depend on a small parameter ∈ > O. Their solutions are not rapidly oscillating (as was considered by Fedoryuk in the first paper in this volume) and vary smoothly everywhere in
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查看完整版本: Titlebook: Partial Differential Equations V; Asymptotic Methods f M. V. Fedoryuk Book 1999 Springer-Verlag Berlin Heidelberg 1999 Asymptotic expansion