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arXiv 1208.3072math-phmath.MP
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具有边势的量子图的迹公式

Trace Formulae for quantum graphs with edge potentials

Ralf Rueckriemen, Uzy Smilansky

摘要:

这项工作探讨了量子图的光谱,其中薛定谔算子的边缘配备了潜在的。散射的方法,这是最初引入的潜在的自由的情况下,扩展到这种情况下,并用于推导出一个长期的功能,其零点与本征值谱相一致。导出了光滑势和$δ$ -势的精确迹公式,并给出和讨论了光滑势的渐近半经典迹公式.

英文摘要:

This work explores the spectra of quantum graphs where the Schrödinger operator on the edges is equipped with a potential. The scattering approach, which was originally introduced for the potential free case, is extended to this case and used to derive a secular function whose zeros coincide with the eigenvalue spectrum. Exact trace formulas for both smooth and $δ$-potentials are derived, and an asymptotic semiclassical trace formula (for smooth potentials) is presented and discussed.

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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