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• W3102639216 endingPage "165202" @default.
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• W3102639216 abstract "We study the question to what extent spectral information of a Schrodinger operator on a finite, compact metric graph subject to standard or $delta$-type matching conditions can be recovered from a corresponding Titchmarsh-Weyl function on the boundary of the graph. In contrast to the case of ordinary or partial differential operators, the knowledge of the Titchmarsh-Weyl function is in general not sufficient for recovering the complete spectrum of the operator (or the potentials on the edges). However, it is shown that those eigenvalues with sufficiently high (depending on the cyclomatic number of the graph) multiplicities can be recovered. Moreover, we prove that under certain additional conditions the Titchmarsh-Weyl function contains even the full spectral information." @default.
• W3102639216 created "2020-11-23" @default.
• W3102639216 creator A5055419536 @default.
• W3102639216 date "2015-04-02" @default.
• W3102639216 modified "2023-09-27" @default.
• W3102639216 title "Recovering a quantum graph spectrum from vertex data" @default.
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• W3102639216 doi "https://doi.org/10.1088/1751-8113/48/16/165202" @default.
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