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Global structure of spectra of periodic non-Hermitian Jacobi operators

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We give global structure of spectra of periodic non-Hermitian Jacobi operators by the discriminant and its stationary points.We also give necessary and sufficient conditions for real spectra and single interval spectra.

periodic Jacobi operatornon-Hermitian operatorglobal structurereal spectra

Hui Lu、Jiangong You

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School of Mathematics,Nanjing Audit University,Nanjing 211815,China

Chern Institute of Mathematics and LPMC,Nankai University,Tianjin 300071,China

2024

中国科学:数学(英文版)
中国科学院

中国科学:数学(英文版)

CSTPCD
影响因子:0.36
ISSN:1674-7283
年,卷(期):2024.67(12)