On the eigenvalues of quantum graph Laplacians with large complex \(\delta\) couplings
DOI10.4171/PM/2047zbMath1470.34081arXiv2001.10244OpenAlexW3138237331MaRDI QIDQ2025695
Robin Lang, James Bernard Kennedy
Publication date: 14 May 2021
Published in: Portugaliae Mathematica. Nova Série (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/2001.10244
Robin boundary conditionsLaplacianquantum graphdelta vertex conditionsestimates on eigenvaluesspectral theory of nonself-adjoint operators
Boundary value problems on graphs and networks for ordinary differential equations (34B45) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15) Nonselfadjoint operator theory in quantum theory including creation and destruction operators (81Q12) Quantum mechanics on special spaces: manifolds, fractals, graphs, lattices (81Q35)
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