arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.09952math.APcs.NAmath.NA
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加权不定问题的节点解

Nodal solutions of weighted indefinite problems

Martin Fencl, Julián López-Gómez

摘要:

本文分析了一类一维超线性不定边值问题的节点解集的结构,该问题在谱参数前具有不定权函数.非常令人惊讶的是,相关的高阶特征值可能不是凹的,因为它是最低的一个。因此,在许多情况下,节点解可以从平凡解的三个甚至四个歧点分叉。本文结合了分析和数值工具。在此基础上进行的分析是数学分析如何辅助问题的数值研究的一个范例,而同时,数值研究证实并阐明了分析。

英文摘要:

This paper analyzes the structure of the set of nodal solutions of a class of one-dimensional superlinear indefinite boundary values problems with an indefinite weight functions in front of the spectral parameter. Quite astonishingly, the associated high order eigenvalues might not be concave as it is the lowest one. As a consequence, in many circumstances the nodal solutions can bifurcate from three or even four bifurcation points from the trivial solution. This paper combines analytical and numerical tools. The analysis carried over on it is a paradigm of how mathematical analysis aids the numerical study of a problem, whereas simultaneously the numerical study confirms and illuminate the analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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