The initial boundary value problem for the Schröudinger equation
✍ Scribed by Leif Abrahamsson; Heinz-Otto Kreiss
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 243 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0170-4214
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✦ Synopsis
Abstract
We study the stability properties of the one‐dimensional Schrödinger equation with boundary conditions that involve the derivative in the direction of propagation (or time). We show that this type of boundary condition might cause a strong growth of the amplitude of the solution. Such a model is not useful for numerical computations. One example is the parabolic wave equation in underwater acoustics for wave propagation in a downsloping duct with the normal derivative condition ∂u/∂n =0 at the bottom.
📜 SIMILAR VOLUMES
In this paper we give, for the first time, an abstract interpretation of such initial boundary value problems for parabolic equations that a part of boundary value conditions contains also a differentiation on the time t. Initial boundary value problems for parabolic equations are reduced to the Cau