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arXiv 1608.06182math.NAcs.NA
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一些非线性本征值问题的数值方法

Numerical approaches for some Nonlinear Eigenvalue Problems

University of Diyala, Iraq(迪亚拉大学);Université de Nantes, France(南特大学)

Fatima Aboud, Francois Jauberteau, Guy Moebs, Didier Robert

AI总结:

本文研究非线性本征值问题的数值方法,回顾了泛函分析方法的理论结果,比较了谱方法和有限差分法在无限域和有界域中的应用,探讨了强非自伴算子的本征值计算难点。

摘要:

本文关注非线性本征值问题的数值研究。我们首先回顾了泛函分析方法获得的理论结果,特别是关于Schrodinger笔架的成果。对伪谱进行了回顾。然后我们介绍了用于计算本征值的数值方法和结果,使用谱方法和有限差分离散化,在无限或有界域中。与理论结果进行比较。这里的主要困难是必须计算强非自伴算子的本征值,这些算子非常不稳定。

英文摘要:

In this article we are interested for the numerical study of nonlinear eigenvalue problems. We begin with a review of theoretical results obtained by functional analysis methods, especially for the Schrodinger pencils. Some recall are given for the pseudospectra. Then we present the numerical methods and results obtained for eigenvalues computation with spectral methods and finite difference discretization, in infinite or bounded domains. Comparison with theoretical results is done. The main difficulty here is that we have to compute eigenvalues of strongly non-self-adjoint operators which are very unstable.

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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