disciplined 发表于 2025-3-23 13:18:03

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净礼 发表于 2025-3-23 17:42:12

,Asymptotic Expansion as , → ∞ of the Solutions of Exterior Boundary Value Problems for Hyperbolic Equations and Quasiclassical Approximations,called simply functions from here on), and . is a (./2) x . matrix of differential operators of order no higher than . — 1. From the conditions . formulated below, it follows that . is even. As a special case, (1) may be a Cauchy problem (this means Ω = ℝ.).

Abjure 发表于 2025-3-23 21:45:07

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bronchiole 发表于 2025-3-23 22:14:35

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progestogen 发表于 2025-3-24 06:04:02

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deceive 发表于 2025-3-24 10:33:50

The Averaging Method for Partial Differential Equations (Homogenization) and Its Applications,In this paper we consider numerically asymptotic methods for solving partial differential equations with rapidly oscillating periodic coefficients and their application in the solution of a number of problems of mechanics. The paper

偏狂症 发表于 2025-3-24 11:28:53

M. V. FedoryukThe authors survey an important topic in PDE which is highly relevant for applications in physics

chisel 发表于 2025-3-24 15:23:14

978-3-642-63586-1Springer-Verlag Berlin Heidelberg 1999

规范要多 发表于 2025-3-24 21:14:55

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jeopardize 发表于 2025-3-25 03:13:44

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 approximation, the quasi-classical approximation, etc.).
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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