arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.07959math.SP
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关于无界Jacobi矩阵的本质谱

About essential spectra of unbounded Jacobi matrices

Grzegorz Świderski, Bartosz Trojan

摘要:

本文研究了具有周期调制或混合元素的无界Jacobi矩阵的谱性质。我们的方法是基于广义特征向量的一致渐近分析。我们确定当所研究的运营商是自伴的。我们确定了点谱没有积累点的区域。这使我们能够完整地描述这些算子的本质谱。

英文摘要:

We study spectral properties of unbounded Jacobi matrices with periodically modulated or blended entries. Our approach is based on uniform asymptotic analysis of generalized eigenvectors. We determine when the studied operators are self-adjoint. We identify regions where the point spectrum has no accumulation points. This allows us to completely describe the essential spectrum of these operators.

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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