Magnetostatic levitation and two related linear pdes in unbounded domains

IF 1 4区物理与天体物理 Q3 PHYSICS, MATHEMATICAL

Reports on Mathematical Physics Pub Date : 2023-10-01 DOI:10.1016/S0034-4877(23)00066-6

Bartosz Bieganowski, Jakub Siemianowski, Tomasz Cieślak

引用次数: 0

Abstract

We consider a problem occurring in a magnetostatic levitation. The problem leads to a linear PDE in a strip. In engineering literature a particular solution is obtained. Such a solution enables one to compute lift and drag forces of the levitating object. It is in agreement with the experiment. We show that such a solution is unique in a class of bounded regular functions. Moreover, as a byproduct, we obtain nonstandard uniqueness results in two linear PDEs in unbounded domains. One of them is an eigenvalue problem for the Laplacian in the strip in the nonstandard class of functions.

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无界域内的静磁悬浮和两种相关线性粒子

我们考虑静磁悬浮中出现的一个问题。该问题导致条带中的线性PDE。在工程文献中，获得了一种特殊的解决方案。这样的解决方案使人们能够计算悬浮物体的升力和阻力。这与实验结果一致。我们证明了这种解在一类有界正则函数中是唯一的。此外，作为副产品，我们在无界域中获得了两个线性偏微分方程的非标准唯一性结果。其中之一是非标准函数类中条带中拉普拉斯算子的特征值问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Reports on Mathematical Physics 物理-物理：数学物理

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： Reports on Mathematical Physics publish papers in theoretical physics which present a rigorous mathematical approach to problems of quantum and classical mechanics and field theories, relativity and gravitation, statistical physics, thermodynamics, mathematical foundations of physical theories, etc. Preferred are papers using modern methods of functional analysis, probability theory, differential geometry, algebra and mathematical logic. Papers without direct connection with physics will not be accepted. Manuscripts should be concise, but possibly complete in presentation and discussion, to be comprehensible not only for mathematicians, but also for mathematically oriented theoretical physicists. All papers should describe original work and be written in English.