Gaps between consecutive eigenvalues for compact metric graphs

On a compact metric graph, we consider the spectrum of the Laplacian defined with a mix of standard and Dirichlet vertex conditions. A Cheeger-type lower bound on the gap $\lambda_2 - \lambda_1$ is established, with a constant that depends only on the total length of the graph and minimum edge lengt...

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Hauptverfasser:	Borthwick, David, HarrellII, Evans M, Yu, Haozhe
Format:	Artikel
Sprache:	eng
Schlagworte:	Mathematics - Spectral Theory
Online-Zugang:	Volltext bestellen
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