On a minimax principle in spectral gaps
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Publication:2114383
DOI10.1007/s11785-022-01209-8OpenAlexW4214871379MaRDI QIDQ2114383
Publication date: 15 March 2022
Published in: Complex Analysis and Operator Theory (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/2008.02489
Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) Eigenvalue problems for linear operators (47A75)
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