Improved spectral cluster bounds for orthonormal systems

DOI10.1515/forum-2023-0254zbMath1548.58017MaRDI QIDQ6612595

Tianyi Ren, An Zhang

Publication date: 1 October 2024

Published in: Forum Mathematicum (Search for Journal in Brave)

zbMATH Keywords

orthonormal systemspectral clustershrinking spectral band

Mathematics Subject Classification ID

Estimates of eigenvalues in context of PDEs (35P15) Spectral problems; spectral geometry; scattering theory on manifolds (58J50) Eigenvalue problems for linear operators (47A75) Nonlinear spectral theory, nonlinear eigenvalue problems (47J10)

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